Four coral lights and light hanging bars for sale. I would prefer that all of them be sold at once. I bought a used reef tank and do not need the lights that came with it as I have decided to just do a fish only tank. I have not used any of these lights long term but they turn on and seem to work properly. These are older lights and I do not have the AI controller to fully control them but they turn on and you can switch the brightness manually but only to four brightness levels without the AI controller. It looks like one each light has one individual LED light that is out. OBO