The Light-Link is an "HDMI over Fiber" cable that sends the video information through optical fiber. Because it uses fiber, it can send the signal instantly with no perceptible latency at longer distances than regular copper HDMI cables. It also can send much higher resolutions up to 8K at these distances due to the high data throughput of fiber.
How it Works
The converters inside the cable heads convert incoming electrical signal into optical on one end, and back into electrical on the other end. The Light-Link is composed of fiber cables and copper cables. The copper cables are used for non-video information such as hot plug detection, grounding, and +5v power. The fiber strands carry all the video information.
The light travels down the fibers using internal reflection, which allows the light to bounce off the cable walls similar to a bobsled. Light travels extremely fast (186,000 miles a second) so the signal arrives almost instantly without losing any quality.
Better than copper
According to HDMI.org "The longest HDMI cable runs seen to date have been achieved using fiber-optic cable, which is far less susceptible to attenuation and interference than copper. Electrically it is similar to an active cable or Cat 5/6 solution, the principal difference being the higher-quality optical cabling between the transmit and receive connectors. HDMI over fiber is a highly robust solution, effective in cable runs up to 100 meters or more."
Easier than any HDMI extender
Since the optical converters are housed inside the heads of the cable, there is no need for any external repeaters. This also means that there is no need for extra power adapters or patch cables.
The Light-Link eliminates possible points of failure. In a typical HDMI extender setup with baluns you have a total of eight connections:
- x4 HDMI connections - video source to sender balun and receiver balun to display.
- x2 RJ45 connections - transmitter balun to receiver balun.
- x2 power connections - from baluns to power outlets.
That's eight possible things that can get unplugged, plugged in the wrong way, or become defective. With the Light-Link you only have one cable that can be easily verified end to end. Troubleshooting is incredibly easy compared to any other setup.
- 48 Gbps
- 8K @ 60Hz
- 4K @120Hz
- HDMI 2.1
- HDCP 1.4/2.0/2.2
- Compatible with ARC and CEC
- Operating Temperature -20℃ to 80℃ ± 5℃
- Recommended minimum bend radius is about 4 cm when not under tension or about 8 cm when under tension.
Bought one 50 ft Light-Link Fiber Optic 8k HDMI Cable.
Works fast, and fine. No problems with video, or sound. Totally Awesome!
Received product within a few days after ordering. Product packed properly.
My 2nd time ordering from Sewell Direct. Excellent company, with awesome customer support.
I will order again in the future from Sewell Direct.
The video quality is amazing.
No issues; all good!
Bought 2 50ft cables as I was having display issues due to having too long a copper HDMI. Running Each cable from receiver to a keystone plate adapter in a wall outlet, then copper from that plate to the actual TVs, works great, only issue I had was with one when I hot plugged it, had to restart TV, Receiver, and PS5 to get them to renegotiate the connection speed to get 4k, but then showed full speed and HDR, no issues since. Been using 5 months.
Installed this 30-foot cable on my 4k projector to upgrade an old hdmi cable I bought in 2003. I was having problems with sync and lots of loss of signal, and it took a while for the projector to sync with my denon reciever when changing inputs but after installing this cable all issues are fixed and have not noticed any sync or loss of signal problems.