Linkind ET8C TV Backlight with HDMI 2.1 Sync Box – 20 ft Smart LED Strip Lights

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Linkind ET8C TV Backlight with HDMI 2.1 Sync Box – 20 ft Smart LED Strip Lights for TVs up to 90", 8K/60Hz & 4K/144Hz Pass-Through, App & Voice Control

Transform your home entertainment setup with the Linkind ET8C TV Backlight with HDMI 2.1 Sync Box. Designed for TVs up to 90 inches, this 20-foot smart LED strip uses HDMI 2.1 screen synchronization to mirror on-screen colors in real time, creating immersive ambient lighting for movies, gaming, sports, and streaming.

Supporting 8K at 60Hz and 4K at 144Hz HDMI pass-through, along with Variable Refresh Rate (VRR) and Auto Low Latency Mode (ALLM), the ET8C delivers smooth, responsive gameplay while preserving advanced HDR content. Customize lighting through the AiDot app, sync lights to music, or control them hands-free using compatible Alexa or Google Assistant devices.

Key Features

Official Linkind ET8C TV Backlight Kit
HDMI 2.1 Sync Box included
20 ft smart RGB LED light strip
Fits TVs up to 90 inches
Real-time HDMI screen color synchronization
HDMI 2.1 pass-through
Supports 8K @ 60Hz
Supports 4K @ 144Hz
Variable Refresh Rate (VRR)
Auto Low Latency Mode (ALLM)
HDR, HDR10+, and Dolby Vision compatible
99% color accuracy (manufacturer claim)
Seamless LED strip design
Segment Color Mode
Average Color Mode
Four built-in gaming presets
Music synchronization
AiDot mobile app control
Alexa compatible
Google Assistant compatible
Supports synchronization with up to 30 compatible Linkind smart devices

HDMI 2.1 Real-Time Screen Synchronization

The included HDMI 2.1 Sync Box analyzes video from connected HDMI devices and synchronizes the LED strip with on-screen colors in real time.

The result is immersive ambient lighting that enhances:

Movies
Gaming
Sports
Live events
Streaming devices
Home theater experiences

Note: According to the manufacturer, HDMI devices are supported. Built-in smart TV apps are not supported for screen synchronization.

8K & High Refresh Rate Support

Designed for modern gaming consoles and high-performance media devices, the ET8C supports:

8K at 60Hz pass-through
4K at 144Hz pass-through
HDMI 2.1 connectivity

This allows compatible displays to maintain high-resolution, high-refresh-rate performance while synchronized lighting operates simultaneously.

Competitive Gaming Features

The ET8C supports advanced gaming technologies including:

Variable Refresh Rate (VRR)
Auto Low Latency Mode (ALLM)

These features help minimize:

Input lag
Screen tearing
Display latency

Compatible gaming systems mentioned by the manufacturer include:

PlayStation 5
Xbox
Nintendo Switch

HDR-Optimized Lighting

The lighting system is designed to preserve the brightness and detail of modern HDR content.

Supported formats include:

HDR
HDR10+
Dolby Vision

According to the manufacturer, advanced color calibration delivers 99% color accuracy for realistic ambient lighting effects.

Seamless 20-Foot LED Strip

The flexible 20-foot LED strip is designed to fit televisions up to 90 inches.

Benefits include:

Continuous illumination
Reduced corner gaps
Smooth halo lighting
Cleaner installation appearance

Multiple Lighting Modes

Choose lighting effects that match your entertainment or personal preferences.

Available modes include:

Segment Color Mode
Average Color Mode
Racing preset
RPG preset
Action preset
General gaming preset

Create custom scenes for:

Gaming
Movies
TV shows
Sports
Relaxation

Music Sync

Music mode allows the lighting to react dynamically to your favorite songs, adding visual effects for:

Parties
Music listening
Gaming rooms
Home entertainment spaces

Smart App & Voice Control

Control your lighting through the AiDot mobile app, where you can:

Adjust colors
Change effects
Select lighting modes
Customize scenes
Manage synchronized devices

Voice control is also available through compatible:

Amazon Alexa devices
Google Assistant devices

Expand Your Smart Lighting System

The ET8C supports synchronization with up to 30 compatible Linkind smart devices, allowing coordinated lighting across multiple rooms or entertainment areas.

Compatible products may include:

Linkind TV lights
Linkind Hexagon Panels
Other compatible Linkind smart lighting products

Specifications

Brand: Linkind
Model: ET8C
Product Type: HDMI TV Backlight Kit
TV Compatibility: Up to 90 inches
LED Strip Length: 20 ft
HDMI Version: HDMI 2.1
Screen Sync: Real-Time HDMI Sync
Maximum Resolution Support:
- 8K @ 60Hz
- 4K @ 144Hz
VRR Support: Yes
ALLM Support: Yes
HDR Support: Yes
HDR10+ Support: Yes
Dolby Vision Support: Yes
Color Accuracy: 99% (Manufacturer Claim)
Lighting Modes:
- Segment Color Mode
- Average Color Mode
- Racing
- RPG
- Action
- General
Music Sync: Yes
Mobile App: AiDot
Alexa Compatible: Yes
Google Assistant Compatible: Yes
Smart Device Synchronization: Up to 30 Compatible Devices
Installation Location: Indoor
Condition: New

Note: The manufacturer does not specify LED density, lumen output, wattage, color temperature range, IP rating, Wi-Fi frequency requirements, HDMI cable length, adhesive replacement options, or whether HDMI cables are included.

What's Included

1 × Linkind ET8C HDMI 2.1 Sync Box
1 × 20 ft Smart LED Light Strip

The manufacturer-provided information does not specify the complete list of included accessories such as power adapter, HDMI cable, mounting clips, or adhesive replacement materials.

Ideal For

TVs up to 90 inches
Home theaters
Gaming setups
PlayStation 5
Xbox
Nintendo Switch
Movie enthusiasts
Sports viewing
Streaming devices
Smart homes
Entertainment rooms
Ambient room lighting

Why It Stands Out

The Linkind ET8C combines HDMI 2.1 screen synchronization with high-resolution pass-through, HDR compatibility, and advanced gaming features to deliver immersive ambient lighting without compromising video performance. With support for 8K/60Hz, 4K/144Hz, VRR, ALLM, music synchronization, and integration with up to 30 compatible Linkind smart devices, it is an excellent choice for modern gaming and home theater systems.

Key advantages include:

HDMI 2.1 Sync Box included
Real-time screen color synchronization
20-foot seamless LED strip
Fits TVs up to 90 inches
8K @ 60Hz and 4K @ 144Hz support
VRR and ALLM compatibility
HDR, HDR10+, and Dolby Vision support
AiDot app control
Alexa and Google Assistant compatibility
Music synchronization
Expandable Linkind smart lighting ecosystem

Frequently Asked Questions

What TV size is this kit designed for?

The LED strip is designed for TVs up to 90 inches.

Does it support HDMI 2.1?

Yes. The included sync box supports HDMI 2.1.

What video resolutions are supported?

The sync box supports:

8K at 60Hz
4K at 144Hz

Does it support VRR and ALLM?

Yes. It supports both Variable Refresh Rate (VRR) and Auto Low Latency Mode (ALLM).

Can it synchronize with built-in smart TV apps?

No. According to the manufacturer, screen synchronization works with HDMI-connected devices only and does not support built-in smart TV apps.

Which HDR formats are supported?

The manufacturer states support for:

HDR
HDR10+
Dolby Vision

Can I control the lights with my phone?

Yes. The lighting system is controlled through the AiDot mobile app.

Does it work with Alexa or Google Assistant?

Yes. It supports compatible Amazon Alexa and Google Assistant devices for voice control.

Can the lights react to music?

Yes. The ET8C includes a Music Sync mode that responds to audio.

Can I connect additional Linkind smart lights?

Yes. According to the manufacturer, you can synchronize up to 30 compatible Linkind smart devices.