Interesting post. I did some research and I build my own LED lights with aluminum heat sinks and raw 10w LED chips. I use a second hand laptop computer power supply, resistors, knowhow, and covert old aquarium fluorescent light fixtures to hold it all. They grow corals and lack some cool features unless you get more creative but a 60w, 2-channel light I have been useing for the last eight years only cost me $60 in additional materials to convert an old 4-bulb 48” T8 fixture. It looks retro and it works well on my 80g breeder. I setup the 10w LED chips to run fixed at 50% so I could potentially rework this light with a dimmer and get more out of it since the chips and surrounding heat sinks as it is only reach 93 degrees F.