I just traded for these lights with my friend. I tried to try to use them on my 250 DD knowing the quality and how I have heard that they grow coral like crazy. They are definitely much more impressive than the V2.1s I had before. One problem though. I cannot get enough coverage on my tank based on the available space I have. Since I am contemplating moving, I do not want to start a project by trying to hang them from a 15 foot slopped ceiling. I am putting them up for sale at $1600. I will consider trading for a pacific-sun-pandora-hyperion-s2-smt-3x75w-8x54w-t5, 3 Reef brite Metal Halides with the led strip or possibly another fixture or Reef equipment that is of the same value or close to it. , the lights are the V 3.0+ and come with the Master gateway (IOT). With the Master Gateway you can control the lights from anywhere in the World. I am not sure why you would want to , but it has that capability. It works with both IOS and Android. One of the lights has the antenna mounted on the outside and the other on the inside. My friend was going to relocate the one but I told him it didn't make a difference to me aesthetically.