[fishmanty]

Originally Posted by burgerchow

Also they are the only true led designed for aquariums. They make their own leds. It is one single led, not a bunch of little ones put together.

http://reefbuilders.com/2012/04/04/k...tuna-blue-led/

The Kessil's are actually a bunch tiny little LED's clustered together much closer than those in a Radion or AI Sol. They just appear to be one LED, because they are that close together. Look at one close up and you'll see the smaller LEDS packing into the "bulb".