The Apex HDMI 2.1 TV Backlight adds an immersive glow behind the TV with great color accuracy and low latency. It works perfectly with HDMI 2.1 devices like PS5 and supports 4K@120Hz and VRR. The lights are bright, responsive, and easy to control via the Smart Life app or Alexa/Google Assistant.

I recently bought the LED backlight strip for my TV, and the difference it makes is impressive.
The ambient glow adds a cinematic feel, reduces eye strain during long movie sessions, and makes the whole setup look more premium.

Pros:
Easy to install: The adhesive backing sticks well, and it was simple to route around the back of the TV.
Bright and vibrant colors: The LEDs are vivid, with a wide color range that can be customized and it powers on/off with the TV—very convenient.
Mood lighting: Great for creating atmosphere during movies or gaming.
Colour sync: With HDMI sync the colour sync very well with the content on the TV.

It is really good, it enhances the experience of watching tv as well as playing games and looks really great .

5.0 out of 5 stars – Perfect Sync Lighting for My LG C4 65" TV!

I recently purchased the **APEX HDMI 2.1 Sync Light** for my **LG C4 65-inch TV**, and I’m absolutely blown away by the results! This device takes immersion to the next level by perfectly syncing LED backlighting with the on-screen content, creating a dynamic, theater-like experience right in my living room.

### **Why I Love It:**
✅ **Flawless Sync with HDMI 2.1** – Works seamlessly with my LG C4, picking up colors and brightness in real-time without any lag.
✅ **Easy Setup** – Just plug it into the HDMI 2.1 port (ARC/eARC compatible) and connect the LED strips—no complicated software needed.
✅ **Enhances Viewing Experience** – Whether I'm gaming, watching movies, or streaming, the ambient lighting makes everything more vibrant and engaging.
✅ **No Interference with 4K/120Hz** – Works perfectly with my TV’s high refresh rate and resolution—no signal loss or quality drop.
✅ **Sleek & Discreet** – The design is minimal, and the LED strips blend perfectly behind the TV without being distracting.

### **Final Verdict:**
If you own an **LG C4 (or any high-end TV)** and want to elevate your home entertainment setup, the **APEX HDMI 2.1 Sync Light** is a must-have. It’s responsive, easy to install, and truly enhances immersion. **10/10—highly recommend!**

Pro Tip- For the best effect, place the LED strips close to the edges of your TV for even light dispersion.

I have installed it with my ps5 and a Sony Bravia tv and it works like a charm.
I have used it for more than couple of months and the quality is what they have promised.