waiting for mine to come in. have over a dozen finnex and almost as many sat+ but find both lacking, finnex requires mixing monster ray with ray2 or fugeray for color rendition and plant growth, while sat+ has the right color with adjustments but lacks par. i use them on my low tech tanks and they work fine but not living up to they hype IME. also have the BML dutch and it works but not what i expected for the price. to be honest i am still in the T5HO camp for my main planted tanks for their par output (tek or ati sunpower) and ability to change color with bulb changes. i still believe led is the future but mfg still need to fine tune the spectrums for our applications. yes you can DIY but i have no illusions about my DIY skills, and need a polished finished product. this LED looks promising as its basically a more powerful sat+.