Compare Samsung QN80H vs LG QNED92A

Rich color, good everyday contrast and sharp images make a strong impression, but viewing angle, glare and motion flaws prevent a clean sweep.

The QNED92A usually delivers sharp, colorful, high-contrast pictures, especially with quality 4K material. The toughest dark and bright scenes expose haloing, clipped highlights, or uneven detail.

AI Football Mode makes spoken commentary particularly easy to follow, while adjustable sound tools can prioritize voices and effects.

Clear Voice Pro can help speech, but AI Sound Pro often reduces focus or reveals speaker distortion. Processing cannot fully compensate for the weak hardware.

Built-in sound is clear and sufficient for everyday TV, but thin bass and limited cinema-scale immersion make a soundbar desirable.

The 2.2-channel speakers sound thin and underpowered next to the excellent picture. Several evaluations report weak bass, poor depth, or even distortion at louder settings.

Accurate presets and calibration give natural-looking colors, although brightness tracking and cooler tones leave some room for refinement.

Filmmaker Mode can look beautifully faithful to the intended image, but several default presets exaggerate color and HDR calibration leaves errors.

The backlight generally lifts contrast and deepens dark areas effectively, but precision falls short of the best competing Mini LED sets.

Local dimming substantially deepens blacks and strengthens contrast, yet its algorithms sometimes crush shadows or lag behind moving objects. Performance varies noticeably with scene complexity.

Processing expands the apparent width somewhat, but the sound still stays firmly in front of the viewer.

Virtual processing can spread audio wider but often leaves it thin, vague, or lacking believable depth.

White balance is accurate in the best presets or after calibration, but some units show a noticeable cool or blue tint out of the box.

Default SDR white balance has underrepresented blues and a warmer look; HDR can skew cool. Careful tuning helps SDR considerably.

Ordinary TV looks bright, colorful and pleasingly natural in suitable modes; factory settings can lean cool or overly blue.

SDR can look crisp and bright, but local dimming occasionally darkens dark scenes too aggressively. Brighter programs are the safer match.

Standard, Movie and Filmmaker modes offer genuinely useful choices; Dynamic can become unnaturally vivid, while custom motion settings matter.

The many picture presets make customization possible, and accurate modes can look excellent. Some default choices run too blue or vivid, while Filmmaker Mode can dim shadows.

The built-in speakers are consistently short on deep bass, leaving action soundtracks and cinematic effects thinner than a soundbar can deliver.

The down-firing speaker system has limited bass presence, leaving dramatic audio effects lacking weight.

More restrained presets reproduce skin tones and colors convincingly; Dynamic or Vivid settings can push them too far.

Accurate modes can render especially realistic skin tones and natural color, and SDR calibration is effective. Some default presets lean visibly blue or exaggerated, while HDR accuracy is less consistent.

Dark-room movies can look convincing with the right preset, but halos, clouding and imperfect blacks keep it short of a premium home-theater screen.

The 65-inch QNED93/QNED92 renders convincing blacks and atmospheric dark films, but some dimming behavior can crush shadow detail. Halos and banding occasionally distract from otherwise rich contrast.

The screen is bright enough for most living rooms, though demanding HDR highlights are less striking than on brighter flagship and rival sets.

The panel is bright enough for many real-world scenes, especially in SDR. It is less luminous than several similarly priced Mini LED competitors.

Regular HDR streaming looks colorful and engaging, while ambitious disc masters and deep-black scenes expose the panel's limitations.

Bright HDR films and games can look vivid and dramatic, helped by punchy color and contrast. Some scenes lose bright highlight detail or crush shadows, and competing Mini LEDs can deliver greater impact.

HDR highlights generally have satisfying impact, although small bright details and especially demanding scenes reveal a lower brightness ceiling than stronger rivals.

Many bright scenes and specular highlights have satisfying punch, but peak HDR intensity falls short of the strongest TCL and Hisense rivals. Very bright scenes also reveal the TV’s limits.

Local dimming creates pleasing depth in many films and games, although black-level limitations reduce the effect in difficult dark scenes.

Mini LED dimming creates striking separation between luminous highlights and dark backgrounds. The strongest scenes look remarkably close to premium LCD competitors.

Fine textures and facial features are rendered crisply, with particularly good results from quality HD and 4K sources.

Fine textures and edges look crisp with good source material, though bright whites or deep shadows sometimes lose subtle detail.

Gaming is an overall strength thanks to low lag, four capable HDMI inputs on larger sizes, and rich visuals. Fast-motion blur is the important counterpoint.

Gaming is the QNED92A’s clearest strength: four capable HDMI ports, low lag, and high refresh support make games responsive and fluid. Dark-pixel smearing and occasional HDR oddities are the main caveats.

The bright Mini LED panel handles typical daylight well, but glossy reflections can become a problem when a window or lamp faces the screen.

Strong SDR brightness makes daytime TV generally comfortable, though direct reflections remain a potential distraction.

Clean HD upscaling earns praise, but low-quality streaming compression and posterization are not always smoothed effectively.

Compression smoothing does a good job hiding blockiness and pixelation in low-bitrate streams, at the cost of some fine texture.

Opinions diverge: sports and game footage can look smooth with careful settings, but lab testing finds slow transitions and visible blur.

Camera movement and fast action look smooth in much of the tested film and sports content. Slow near-black pixel transitions and unusual signals can expose occasional blur or judder.

Game Mode is pleasingly responsive at around the low-teens milliseconds in measured examples; processing-heavy modes can be much slower.

Game Optimizer delivers low controller delay, impressing several tests and making console play responsive. One tester was more cautious about demanding competitive shooters.

Rear grooves and stand clips help route power and HDMI cables neatly out of sight.

No dedicated cable-routing hardware is provided, leaving tidy installation to the owner.

Optional LED Clear Motion is difficult to recommend: it noticeably darkens the image and can introduce double-image artifacts.

The optional motion-blur reduction mode has precise timing at 60Hz and 120Hz without obvious image duplication.

The feet hold the panel well when spread apart but can wobble more in the narrow configuration.

The support feet or center pedestal hold the screen securely despite differences in shape and footprint.

The speakers get reasonably loud without much compression, but sheer loudness does not compensate for their limited low-end output.

The built-in speakers cannot play especially loudly without sounding strained.

Slow pans can show visible stutter, especially without carefully chosen smoothing settings.

Optional interpolation smooths low-frame-rate films without markedly changing their natural appearance.

Custom motion adjustments can smooth camera pans, while automatic interpolation sometimes adds jitter, noise or the soap-opera effect.

The motion smoothing stays consistent in frame pacing and can reduce stutter with restrained settings.

Filmmaker and Standard modes look more believable than heavily boosted Dynamic settings, which can distort complexions and overcook colors.

Accurate modes preserve natural skin tones, delicate color, and convincing scenery.

Fast movement can become noticeably blurred, especially at 60Hz and in dark scenes, despite the high-refresh input specifications.

Most movie motion looks polished, yet near-black transitions and 60Hz game scenes show significant smearing in one detailed test.

Proper chroma 4:4:4 support keeps fine computer text legible across supported signal formats.

Full chroma support helps lettering, but the BGR subpixel pattern can create visible text fringing in some desktop applications.

Dark scenes often preserve texture and visibility rather than crushing everything into black, though this can come at the expense of black depth.

Many dark scenes reveal satisfying texture, but difficult low-light material can become muddy or over-darkened. Picture modes and scenes make a meaningful difference.

The remote is straightforward but not universally premium, and different descriptions disagree about the presence of a solar-charging panel.

The Magic Remote pointer makes navigation intuitive and the redesigned handset fits the hand better. Missing physical controls create some frustration.

Wide and narrow placements accommodate different media cabinets, making the stand more flexible than a fixed-width design.

The US QNED92A has widely spaced feet that demand a broad cabinet, while the UK QNED93 uses a more compact center stand.

Voices are easy to understand through the built-in speakers, with extra AI and Amplify tools available for commentary and conversation.

Voices are understandable at modest levels and Clear Voice Pro can lift speech. Some voice modes make the result less natural or insubstantial.

Bold, vivid color is one of the QN80H's biggest attractions, especially on sports pitches and animation. Very bright scenes can wash out some subtler shades.

Colors are rich and often vibrant, but high-luminance saturation does not match the strongest competitors. Red and green highlights can be less intense.

HDR gradients are largely smooth, but brighter green shades and some demanding scenes can show visible bands.

Most color gradients transition smoothly, with only very faint bands in difficult shades.

Low-frequency sound can become strained or distorted, reinforcing the case for separate audio equipment.

The speakers can produce clear buzzing and crackling when pushed, undermining movie audio.

Moving highlights do not noticeably flicker, but the dimming system can lag fast motion and darken the leading edge.

The backlight is slow to track moving highlights, occasionally leaving a bright trailing halo or a dark leading edge.

Its relatively restrained design and flat rear make mounting straightforward, although rear connections become harder to reach close to a wall.

Standard VESA mounting is available and the front looks tidy on a wall. Heavy panels and recessed sockets need planning.

A bright and capable Samsung all-rounder, particularly for gaming and everyday TV, rather than an uncompromised picture-quality champion.

A refined, feature-packed Mini LED television with consistently strong gaming credentials and an appealing picture. Its weak built-in audio, price competition, and occasional picture imperfections temper the enthusiasm.

HD material is typically upgraded into a sharp 4K presentation, though low-bitrate streaming can reveal artifacts and softened detail.

The processor keeps most 720p and 1080p material sharp and watchable, with readable text and stable motion. Particularly low-quality or noisy sources expose its limits.

The center of the picture tends to stay clean, but darker edges and occasional magenta-tinted blotches can be visible on uniform backgrounds.

Sports fields and sweeping camera shots look mostly clean through the center, but darker edges or mild bands may appear.

Simple feet push into place quickly, making assembly unusually easy without extensive tools or adjustments.

Stand installation is straightforward, although a screwdriver and sometimes a second person are helpful.

Black depth is a mixed point: local dimming helps produce dark, even scenes, but some dark films reveal grayish or purplish blacks.

Deep blacks are a standout improvement over earlier LG LCDs, creating convincing nighttime scenes. Complex high-contrast images can still look raised or lose detail.

The interface offers plenty to watch without overwhelming the home screen, but its personalization can feel generic.

Recommendations can be tailored to viewing habits, and some home-screen suggestions can be turned off.

Upscaling older sources works well, and useful zoom controls help with small-format programs; poor compressed streams may still show artifacts.

HD material often scales cleanly, but very rough standard-definition clips can look messy or blurry. One assessment also found disappointing noise in regular Blu-ray content.

Black backgrounds are generally very even when viewed straight on, with little flashlighting or patchiness in the strongest results.

Local dimming produces a largely even black field, with slight haloing around bright on-screen objects.

The TV is straightforward to calibrate and can achieve excellent SDR and HDR accuracy with suitable settings.

SDR calibration is straightforward and produces excellent accuracy. HDR receives less benefit from calibration.

Game Mode offers pleasing brightness and responsive play, although tiny HDR highlights can lack the impact of stronger TVs.

Game Optimizer achieves excellent responsiveness, with a modest decrease in brightness and occasional extra blooming.

Smooth HDR color transitions are a strength, with little visible banding outside a few bright green areas.

Smooth tonal fades show little obvious banding or blocking. Small imperfections are usually hard to notice.

Recessed rear connectors can be awkward to reach once the TV is mounted tightly against a wall.

The recessed HDMI ports can be difficult to reach after wall mounting, so connecting cables first is wise.

Direct reflections are the panel's most persistent weakness, with bright windows remaining visible even when the screen itself is luminous.

The glossy screen creates bright mirrorlike reflections in some environments, though another test found better-than-expected glare protection. Placement matters.

A pared-back control layout reduces clutter but sacrifices convenient button sizes and some direct shortcuts.

The US remote lacks a dedicated input key and number pad, requiring more steps for some everyday actions.

Pixel transitions are slow in darker scenes, leaving blurred trails especially around 60Hz motion.

Response is quick in brighter transitions but noticeably slow in dark ones, causing visible blur in 120Hz and especially 60Hz gaming.

Dark-screen uniformity is generally good, while gray backgrounds can expose darker edges or patchy color on some units.

Black-field and edge uniformity are imperfect, with one detailed test finding distracting near-black vertical bands. Other assessments found much less obvious dirty-screen effect in bright scenes.

Game Bar places useful adjustments such as aim-point overlays, map zoom and picture presets within quick reach.

The Game Optimizer and quick-access overlay provide valuable control over picture modes, refresh settings, and current game status.

Mainstream HDR colors are handled well, although the wider BT.2020 range is limited compared with premium RGB Mini LED rivals.

The screen covers a broad range of colors, particularly in DCI-P3, although some competing flagship models cover slightly more.

Samsung TV Plus offers an appealing variety of free live and on-demand content without another paid subscription.

LG Channels provides plenty of free viewing beyond the usual paid apps.

VRR works effectively across compatible refresh rates and helps keep games smooth and free of tearing.

VRR across modern console and PC standards keeps compatible games in sync with the display and helps reduce tearing.

Ads remain part of the home interface; targeted promotions can be disabled, but advertising cannot be removed altogether.

Some promotional banners can be disabled, but advertisements remain in parts of webOS and can feel intrusive.

High refresh and variable refresh make the larger models attractive to console and PC players; the 50-inch variant is less capable.

120Hz and 144Hz are useful for responsive games, although slow transitions from very dark shades can add blur.

The Mini LED backlight often keeps halos discreet, yet bright subtitles and objects can still produce glow, especially in a dark room or off-axis.

Small halos remain visible around subtitles, bright objects, and moving highlights. Some find blooming surprisingly restrained, while others find the light bleed distracting.

Daylight visibility can be good thanks to the bright panel, but the glossy surface is not especially effective against direct window reflections.

Brightness compensates for ambient light, but direct reflections can remain conspicuous. Assessments disagree on how well the screen resists lamps and windows.

Common PC and console signals work well, including 1440p at 120Hz on supported consoles.

It accepts 1440p at 120Hz from supported consoles and computers.

Its LCD-based Mini LED display avoids permanent OLED-style burn-in, reassuring households that leave logos or game interfaces on-screen.

The LCD panel avoids the permanent burn-in risk associated with self-emissive OLED pixels.

Supported larger sizes work with compatible PC variable-refresh setups, reducing tearing; this support should not be assumed for the 50-inch version.

Compatibility with G-SYNC improves variable-refresh gaming for supported PCs.

Four full-bandwidth HDMI inputs on supported sizes make it easy to connect several modern consoles and a gaming PC without swapping cables.

All four HDMI ports offer the full bandwidth needed for demanding consoles and PCs, a major advantage over two-port rivals.

Common HDR scenes retain useful bright detail, but tiny specular highlights and very high-mastered material can clip or lack punch.

The brightest whites sometimes lose subtle gradients or become flat, even when overall brightness looks impressive. Less extreme highlights retain more texture.

Most sources play with little judder, and careful custom settings smooth pans, though aggressive or automatic processing can introduce artifacts.

Most movie and TV signals are handled without judder, though certain 25p material carried in 60p can show imperfect frame timing.

Colors lose saturation and blacks lighten quickly when the screen is viewed far from the center.

Off-center viewers can see a pronounced red cast and reduced contrast.

The minimalist remote simplifies navigation, though some buttons are small and the slim shape can be easy to misplace.

Point-and-click navigation is intuitive, but the Home Hub approach to changing HDMI inputs can feel less direct.

Sitting near the center is important; colors and black depth deteriorate as viewers move to the sides.

Colors and contrast drop noticeably from the sides, making the TV a poor match for wide seating arrangements.

The LCD design offers low predicted risks of common panel faults and avoids burn-in, although long-run failure resistance remains a projection.

The panel design has low predicted risk for several typical LCD defects, though individual LED or pixel failures remain possible.

Missing Dolby Vision is a recurring limitation, particularly for viewers with compatible streaming subscriptions and 4K Blu-rays.

Dolby Vision format compatibility is a welcome inclusion, but one assessment found little enhancement in its picture mode and an owner reported a connection issue.

Gaming Hub gathers console-free services in one place, a useful convenience for anyone with sufficiently fast internet.

Xbox Cloud Gaming and GeForce NOW add convenient ways to access games without dedicated console hardware, although they are not viewed as full replacements.

The equipment and picture are compelling at discount prices, but several rivals and the older discounted QN90F can deliver more performance per dollar.

Its rich gaming features and polished software help justify the cost, and a few owners consider it good value. Most expert comparisons find brighter TCL or Hisense alternatives or similarly priced OLEDs more compelling.

Modern games look vibrant and detailed at 4K, with responsive controls and strong connectivity. The image can blur during fast transitions despite the high refresh options.

Games at 4K look colorful and responsive, with current-generation consoles supported at 120Hz.

SmartThings guidance and uncomplicated push-in stand feet make the initial setup notably simple.

The stand goes on easily and the TV’s initial setup is straightforward.

The larger versions can accept 4K at up to 144Hz, making their HDMI connections unusually flexible for gaming. The 50-inch version has a notably more limited refresh-rate panel.

High-end PCs can use up to 4K at 144Hz, providing headroom beyond the 120Hz modes used by consoles.

FreeSync helps keep supported games free from tearing as frame rates change, although the 50-inch UK variant is missing some advanced features.

FreeSync support adds convenient VRR compatibility for Xbox and gaming PCs.

PlayStation 5 and modern Xbox gaming at 4K/120Hz works well on capable sizes, with the 50-inch version carrying important refresh-rate limitations.

All four HDMI ports support 4K at 120Hz, making it easy to connect modern gaming consoles without selecting a special socket.

The lack of DTS playback support is an unwelcome restriction for physical-media soundtracks that use the format.

DTS decoding or passthrough support is missing, which complicates playback for some physical-media movie soundtracks.

High-bandwidth HDMI connections are a strong asset for multiple gaming devices, especially on the larger models with four capable ports.

Every HDMI input has full 48Gbps bandwidth, enabling high-refresh 4K devices without port juggling.

Bixby can misunderstand ordinary voice commands and sometimes requires shouting, weakening its hands-free appeal.

Voice requests are handled quickly and reliably, with extra personalized suggestions available.

Tizen is generally fast and smooth, with occasional back-navigation delays or pauses during heavier interface activity.

The input-selection dashboard may take noticeably longer to load than expected.

Tone mapping can preserve good detail in mainstream streaming, but HGIG overbrightens and very demanding 4,000-nit material can lose highlight information.

HDR follows the intended luminance curve reasonably well, though some midtones are too dark and clips may be truncated at peak brightness.

Seven years of promised Tizen updates is an attractive commitment for keeping the TV current beyond the initial purchase.

LG promises several years of major webOS upgrades, improving the platform’s longevity.

The current Tizen interface feels quick, with applications launching readily and little sustained lag.

webOS generally navigates smoothly with responsive menus and apps.

A broad range of mainstream streaming services and built-in apps makes external streaming hardware unnecessary for many households.

The platform offers a strong selection of streaming apps and free channels; UK catch-up coverage was completed after initial launch.

Samsung's current Tizen system is quick, feature-rich and generally intuitive, though the AI and recommendation areas are less universally useful.

webOS earns praise for its broad content access, customization, and generally smooth navigation. Advertisements and increasingly busy AI features are its main distractions.

SmartThings can connect the screen with compatible home devices, bringing device control into the TV interface.

Home Hub supports connected-home devices and phone casting in a convenient shared dashboard.

Hands-free voice controls make routine TV operation convenient in principle, but recognition quality is inconsistent.

Alexa and Google Assistant compatibility provide flexible hands-free controls.

A slim-looking profile and restrained borders give this Samsung an upscale living-room appearance.

Thin bezels create a clean, modern front, with sturdy metal touches. The plastic back and somewhat bulky body are less luxurious.

The chassis feels sturdy and neatly finished despite extensive plastic construction, with few obvious fit-and-finish complaints.

Fit and finish are generally good, but plastic materials and some rear-panel flex lower the premium feel.

A wide choice of mainstream and oversized screen sizes helps this range fit different rooms, with notably large options available.

The US range offers several large-screen sizes, letting buyers match the screen to the room and seating distance.

Thin borders keep attention on the image and give the panel a clean, screen-forward appearance.

The narrow screen borders help put the focus on the image, though the frame remains slightly noticeable in some settings.

webOS menus are generally approachable and customizable, even if the growing collection of AI tools adds complexity.

Setting up a Samsung account is an unwelcome extra step for using downloadable smart-TV apps.

LG’s AI Chatbot can answer TV-related queries with surprisingly good accuracy.

Automatic picture features can save manual adjustments, though the broader AI interface is not universally compelling.

Football optimization makes the pitch and uniforms pop and brings commentary forward, but its extra sharpening and saturation can look artificial.

Decorative wallpapers and screen savers are appealing ways to keep the screen looking pleasant between programs.

Samsung's Art Store stands out for its unusually extensive selection compared with competing TV art galleries.

SDR-to-HDR remastering gives ordinary programs extra life, making fine textures and light effects easier to see without requiring native HDR content.

Automatic low-latency switching makes it easy to enter Game Optimizer without manual menu changes.

Atmos processing opens up the presentation somewhat, but the speakers do not convincingly surround the listener.

The Mini LED body is relatively bulky compared with slimmer alternatives.

The ThinQ companion app provides dependable controls from iOS and Android devices.

Filmmaker Mode can present impressively accurate and cinematic images, though it sometimes darkens shadow detail too much.

A test pattern produced a local-dimming flicker anomaly, although it was not reproducible in normal viewing. The high-frequency everyday flicker is unlikely to be noticed.

Additional game-motion smoothing comes with a substantial latency penalty, making it a poor fit for twitch-sensitive games.

Upscaled imagery is usually crisp and readable, with good enhancement of shapes and text.

The 75-inch picture can feel especially rewarding when matched to a suitable seating distance.

The 75-inch IPS-based configuration appealed to one owner, while more technical assessments note that panel-type changes by size can affect contrast.

Personalized AI search can target results to the viewer issuing a voice request.

Adjustable plastic feet are practical and versatile, even if they do not feel particularly luxurious.

The interface offers many apps, but the modest internal storage leaves less headroom for adding lots of them.

The ability to schedule a recording to an attached hard drive adds convenience to broadcast viewing.

One owner's set reportedly powered itself back on unexpectedly, making voice activation and standby behavior worth monitoring.

The AI companion adds another destination on the home screen, but its extra panel can feel unnecessary rather than helpful.

Variable refresh support continues to prevent tearing even when frame rates drop, aided by low-framerate compensation.

The set is fairly substantial front to back, so a flat wall installation may stand out slightly rather than sitting perfectly flush.

Large sizes are heavy enough to require assistance, especially for moving or wall mounting.

Bluetooth rear-speaker pairing offers a way to widen a compatible home-theater sound setup.

A reduced-resolution 240Hz mode gives compatible PC gamers a higher-refresh option. It does not work at 1440p or 4K, and available capabilities differ by screen size.

AirPlay is a notably welcome convenience for wireless content sharing.

Streaming and connected-device sharing feel seamless through Home Hub.

Dolby Atmos decoding is available, but the built-in speakers offer little convincing height; external speakers improve immersion.

One owner experienced Dolby Vision becoming unavailable on an Xbox and internal Netflix app, although the tested sample worked normally. This appears inconsistent rather than universal.

Dolby Vision, HDR10, and HLG compatibility are welcomed for modern movie and streaming sources.

App-store usage is expected to remain smooth with plenty of applications installed.

Several years of announced webOS upgrades should help keep apps and menus current.

Local processing for the AI assistant earns approval because it reduces the need to send every interaction to an external assistant.

Midtones can be slightly crushed even while shadow details appear controlled. Bright HDR mastering levels can affect the smoothness of highlight roll-off.

Wi-Fi 6 connectivity is regarded as a worthwhile addition to the TV’s modern feature set.

The Amplify mode improves clarity and apparent loudness, and further equalizer controls offer some flexibility even if they cannot create deep bass.

Ambient-light dimming can undermine carefully chosen picture settings, so leaving it off may produce a more consistent image.

Preference-based sound tuning produces a more satisfying result than most preset speaker modes.

Minor brightness shifts can occur across cuts between bright and dark scenes.

Compatible Samsung soundbars can play alongside the TV speakers for a larger, more coherent sound presentation.

Excellent SDR light output lets bright broadcasts stand out even with ambient room lighting, although darker scenes can be dimmed unnecessarily.

Adjustable foot heights make it easier to slide a soundbar beneath the screen without blocking the picture.

Object Tracking Sound Lite provides useful lateral movement for effects, though not convincing height or all-around immersion.

Virtual audio broadens and steers effects across the screen but cannot substitute for genuine surround speakers.

The 65-inch European QNED93 uses a VA panel while other regional sizes can use IPS, so picture findings may not carry across every size.

The 50-inch version tested in the UK lacks the high-refresh and PC VRR features of larger versions, so size matters for gaming buyers.

Remote charging is a point of conflicting descriptions: one model assessment notes a solar-rechargeable unit, while others criticize a battery-powered replacement.