Took a chance on this led light from Ledzeal. It was mentioned by another member on this thread and after multiple questions with China I was convinced. The unit itself comes in 24, 36, 48, and 60 inches. It's made up of clusters of 24 3watt leds. A 24 inch has two cluters and a 36 has three and so on. Mine is 48 inches and has 96 Bridgelux leds. Total power is almost 300 watts. Each cluster can be controlled independently or all four together. There are four channels and six modes. In the DIY mode you can customize your own power settings. You can do increments as little as 1% but you only have eight settings within a 24 hour period. It also has the fancy features which I don't use, Flash, Cloud, and Sunrise. There is also a manual mode to set a fixed setting for each channel.
The unit looks modern and sleek and well constructed. It does come with a power supply that is a stand alone. The controller comes in hard wired or wifi. Wifi is $50 more.
The led layout and spectrum is fully customizable. I took Ron Reefman's advise and chose a 2.5:1 ratio on the blue to white: However, I did get one red and one green led on each cluster. I did it more for color. For color growth there are plenty of blues which I chose two kinds, 450nm and 460nm. I also have UV and 12000k. The customized break down for each cluster is as follows, Ch: #1 six blues, two 450 and four 460. Ch:#2 six 12000k. Ch:#3 four 450 and two UV and Ch: #4 four 460, one red, and one green.
I'm very satisfied so far. It's been only a few days but first impression is good. As far as par, no idea cause I don't have par meter. According to manufacture on a 24" deep tank, par should be around 200 at 100%. All I know is that I had DIY Bridgelux leds prior to this unit and this is way more powerful. I still have my T-5's running next to it while in the transition period. No channel is higher than 50% until all corals are acclimated. Eventually I should be able to remove the T-5's and use just the led unit.
Total cost for the fixture was $450. That includes customized layout and spectrum, hard wired controller, remote, and shipped to my door. I got a break in shipping because I ordered two other units for my friend. If you order two or more you save $40. I believe that this unit in the USA is worth way more than what I paid for it. Here are some pictures.
