Fancyleds 3 Port 2.1 Fancy Sync Box TV LED Synced Backlight with HDMI 2.1, 4K 120Hz, 144Hz, 8K 60Hz, VRR, ALLM, 96 RGBW LEDs Per Meter Ambient Lighting for Movies and Gaming (for 70" to 95" TVs)
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Availability:
In Stock.
Arrives
Monday, Jul 20
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Size: For 70" to 95" TVs
Features
- IMPORTANT: PLEASE READ HDMI Device Required: You must connect a compatible HDMI device for syncing. Apps on your Smart TV are not synced; only apps and streaming services on your HDMI device are synced. Use with a PC is NOT recommended.
- UNIVERSAL POWER ADAPTER: Includes a universal power adapter compatible with US, EU, AU, and UK power sockets.
- HDMI 2.1 CONNECTIVITY: Three HDMI 2.1 inputs; supports 4K 144Hz and 8K 60Hz signals with HDR, DV, ARC, ALLM, and VRR for consoles, streaming devices, and set top boxes.
- 96 RGBW LEDS PER METER: High LED density creates a brighter, more uniform backlight with smoother color transitions and no visible dark gaps between diodes; a dedicated white diode adds saturated colors and accurate white tones.
- HIGH SPEED SYNC: No lag or delay between the LED backlight and TV; fast color reaction times keep the backlight aligned with the action in games and movies.
- HDCP COMPLIANT: Streaming services play in 4K and 8K on your compatible HDMI devices without black screens or playback errors; works with all TVs.
- LED STRIP INCLUDED: An RGBW LED light strip sized for the listed TV range comes in the box; the strip mounts behind the TV and connects directly to the sync box.
Description
Yes, every Fancy Sync Box comes with an LED strip designed for your TV. There’s no need to purchase a separate strip or extra lighting accessory to get started. 4K 144Hz delivering ultra-smooth, high-definition visuals ideal for gaming and fast action, and 8K 60Hz for unmatched clarity and detail. Sync the colors of your device with your TV to create the most immersive viewing experience. Tutorials are available on the Fancyleds YouTube channel and website.
Color: Black
Brand: Fancy LEDs
Voltage: 12 Volts
Product Dimensions: 6.6"L x 4.1"W x 9.1"H
Display Type: LED
Brand Name: Fancy LEDs
UPC: 721678539837
Warranty Description: 2 year manufacturer warranty from date of purchase.
Manufacturer: Fancyleds
Part Number: FSB3P2.1
Model: FSB3P2.1
Included Components: Sync Box; RGBW LED Strip; Universal Power Adapter; HDMI Cable; Corner Brackets
Voltage: 12 Volts
Display Type: LED
Smart Home Compatibility: Not Smart Home Compatible
Color: Black
Item Dimensions L x W x H: 6.6"L x 4.1"W x 9.1"H
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Jul 20
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: For 70" to 95" TVs
I recently added this RGBW 3 HDMI 2.1 Fancy Sync Box to my setup and it’s honestly a really fun upgrade for a big TV. The lighting syncs with whatever is on the screen and makes movies and games feel way more immersive. Colors spill out around the edges of the TV and it really adds to the atmosphere, especially during action scenes or colorful games. Setup was pretty straightforward. The LED strip goes on the back of the TV and the sync box connects between your devices and the TV. I like that it has three HDMI ports, so I can keep my console, streaming device, and another input connected without constantly switching cables. Another big plus is that it supports 4K at 120Hz with HDR, which is great for gaming. Everything still looks smooth and high quality while the lights react in real time. Overall, it’s a really cool addition if you want to make your TV setup feel a little more like a home theater or gaming room. Easy to install, works well, and the lighting effects look great on a large TV. Definitely a fun upgrade.
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Reviewed in the United States on March 5, 2026 by L mats
Size: For 24" to 55" TVs
I’ve bought the first gen and now I’ve upgraded to these because I bought a new tv. They work the same if not better. Since these are RGBW the color on the leds are more accurate and somehow pop more. It’s on the expensive side but very worth it works great with ps5 and Apple TV, switching media is easy with app. The app works amazing too very easy to setup.
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Reviewed in the United States on September 10, 2025 by Emilio Garcia
Size: For 56" to 65" TVs
If you don’t mind having to use an app on your phone everytime you need to switch between devices, then this is an excellent choice! CEC / AUTO SWITCHING HDMI Highly annoying as the device claims to be CEC compatible, they just don’t have it implemented correctly. There are certain things you have to manually program with CEC to make it user friendly; their programmers clearly don’t know about this. If you follow CEC strictly, it kinda sucks for actual usage. For example, most people don’t turn off their apple tv (which with CEC would turn off your tv as well) before turning on the game console. Well strict CEC implementation won’t switch to the game console because the previous input is still sending signal. They need to program it so that regardless of previous input, when it detects a NEW input signal, it switches to that hdmi. Now many hdmi switches will also send a CEC off signal to the previous device, to help with switching back to that device. That part is optional, as it can be annoying for gamers when they accidentally click their apple tv remote while gaming and the console shuts down. Govee also fails to implement CEC, and even worse than Fancyleds. The only brand to make CEC right is Hue Sync Box. GOVEE Overall quality is worse than fancyleds, AND may be more expensive. Worse CEC, worse LED density, worse light reproduction… but maybe better app controls. HUE Best quality in CEC and light reproduction in their new 8k model; but awful pricing and the fact that you have to buy the LED backlight separately, AND power it separately is annoying. I like just plugging the light strip into the sync box like the other two brands. I hate how bulky hue gradient strip is, and also the power plug for the strip AND sync box both just annoy me. I do like a clean install and Hue fails this metric. SUMMARY If fancyleds would improve their CEC programming beyond just basic specification, they would absolutely dominate the market of hdmi based backlighting. I’ve written them about it, but to date i get idiot replies about how they support cec and i should reboot my devices (facepalm). If their devs read my comments they’ll realize what I mean, it’s a stupid simple adjustment to their firmware!
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Reviewed in the United States on March 26, 2025 by Iam
Size: For 24" to 55" TVs
Great job and definitely enhances the viewing experience. The attached clip shows how quickly responsive it is with the lighting from the flames
Reviewed in the United States on July 5, 2026 by Kevin
Size: For 70" to 95" TVs
Lighting is only good at night time and you get use to the led within a month or so. The hdmi port pretty stupid and won't auto switch port like it supposed to. I usually have my pc on first and sometimes me or someone else would accidentally bump the ps5 controller and turn on the console. It force the hdmi port switch to the Ps5 console and stay on that port only. The app or physical device can't switch back to the PC. Turning off the ps5 doesn't do anything too. Only fix is to turn both pc and ps5 off then turn on the PC again. It only saving grace is that the rgbw react ok with any games. And yet it still mess that up.I use a red square on my desktop to test the rgbw tracing and fine out that the rgbw can only track colors to the correct corner only. When I move the red square to the bottom of my screen. The rgbw glow red on the right side of the TV. Up goes left, right goes down and left goes up. Honestly I could have run everything to my pc and have the PC controller the rgbw and it would of done a better. I can see this going for $200-$300 for a 4 port hdmi. But $500 and it doesn't work as advertised is just a scam.
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Reviewed in the United States on April 26, 2025 by Jamie
Size: For 56" to 65" TVs
Works beautifully and made my setup just THAT much better. It responds quickly and I’m able to get LEDs whether I’m watching TV, playing PS5, or Switch 2!!
Reviewed in the United States on March 31, 2026 by mposton10
Size: For 56" to 65" TVs
Such a better product than the Govee. Bought TWO defective Govees, then tried this and it was easier to install, looks better and has made me very satisfied. 10/10 looks great
Reviewed in the United States on December 7, 2025 by Andrew Reed
Size: For 70" to 95" TVs
Couldn’t find a single company that makes these lights for a 98” TV! Decided to take my chances on these and bring the strip in to make up for the larger size. We have a 98” TCL QM6K Pro and setting these up 3.625” away from the edge on all sides was the perfect fit. If you try this, just make sure you KEEP the 16:9 aspect ratio for the lights to sync correctly. I was worried you wouldn’t be able to see the lights very well, bringing it so far in, but I’m personally really happy with it. The colors are vibrant and I don’t notice any lag at all. Only rating 4 stars currently because switching between inputs has been a little confusing. I don’t think you can leave multiple devices on and switch between them without the app. We typically turn each device off when we’re done with it but if we’re watching a movie on Apple TV and then my husband wants to play the PS5, it seems weird I have to power down the Apple TV (which turns the TV off) then turn the TV back on and then the PS5 on. I’ll update the review if I can figure out a better way!!
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Reviewed in the United States on April 25, 2026 by Jackie K.