I just googled it, and it looks like it just outputs PWM to a PWM LED Controller...
It does do some pretty cool stuff, providing realistic lighting for an aquarium, including the ability to enter coordinates, and it will emulate sunrise/sunset for that location... and lightning, etc... not much use for us though...
We threw some ideas around on another thread, and when I can find time, I'll see if I can get something working using an arduino and a relay...
My project I started uses Mega and I hook up 2 relay boards that have 4 relays on each...2 run lights and 2 run watering pumps.
I also changed 2 of the relays on each board to match the proper amps the lights were pulling.
If your lights pull say 3-4 amps then make sure you use MIN 5 amp relay or even better a 10amp.
I think I paid like $8-10 on Aliexpress for each one and another $5 or so on relays...so $20-25 total.