I got them in a group buy on Manhattan Reef. 2 units, 90 watts each = 400-450 MH. They are controled by my laptop via bluetooth. There are alot of features but mainly.
1. I can control the intensity from 0%-100%
2. adjust from 10000K to 24000K, great for color pop or change for visitors to look at tank.
3. Set sunrise and sunset for upto 1 hr. the light intensity slowly raise to what I set the maxium in that time
4. full-moon cycle. from no moon to full moon. I was surprised the first time there was no moon, I had no lights then a couple days later they slowly came on.
5. adjust fan speed or just let internal temp determine speed.
6. seasonal and weather conditions. lights are on for less time in winter and more in summer. I can program up to 40 times a day intensity changes for 10 minutes each to simulate cloud cover.
They provided par readings of 1200 1 inch into water and 350 20 inches into water. I'd like to check that for myself.
I just got back into the hobby and never had the correct lights so I thought i would role the dice with led. these are $875 each, the group buy was $525 each. with extended warrenty. I'll see how it works.
Any questions let me know