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.
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.
- 4K @ 60Hz 4:4:4
- HDMI 2.0
- HDCP 1.4/2.0/2.2
- Compatible with ARC and CEC
- Operating Temperature -20℃ to 70℃ ± 5℃
- Recommended minimum bend radius is about 4 cm when not under tension or about 8 cm when under tension.
Order was on time, the new Fiber HDMI is the way to go. Better quality of picture and smaller cable to fit the box
I have purchased 5 of these although the first does not show under my account. The 4 100ft have worked great even at 4k. I always had trouble with the 150ft link although it took a long time for me to be sure what the issue was. I finally isolated it by buying the 4th 100ft and replacing the 150ft link. That totally solved all my issues. It was out of warranty at that point and Sewell declined to repair it at my expense. The moral of the story is make sure yours works before it is out of warranty. There are other reviewers that also are report receiving defective units so make sure yours works.
Installed 150' Light-Link Fiber Optic 4K HDMI 2.0 cable in a home theater set-up.
Cable was carefully pulled through two attics and through a long conduit across a breezeway. Video signal is perfect, much better than expected. Thanks for your great product.
Best solution for extended distance monitors yet. Was planning on using ethernet but this is 100 times better.
I've been putting together a home theater room and finally had the TV and the projector installed by Geek Squad, It took me several months to purchase everything I needed, having the installers was the last project and I was excited to finally put it to use. When we turned on the signal and everything worked except for the projector it was a big let down. We tested all the components and cable signals and the failure was the Sewell Light-Link Fiber Optic 4K HDMI Cable. This cable was installed on the output of Monitor 2 from my Onkyo TX-RZ840 to the Epson 5050Ub Projector. They tested every way possible and it didn't work, We even lowered the signal to 720p and still didn't work. I hope to resolve this issue with Sewell; which I purchased it directly through them. Hopefully the cable is just one bad one that slipped through and hopefully their customer support staff takes care of me when I reach out to them after the Thanksgiving holiday. I will report back when as soon as this is fixed or if I run into issues with the exchange. I sure hope it all goes smooth!
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