Here is my review; I currently have 2 LEDZEAL S400 lights
http://www.ledzeal.com/p43.html
Pros
-3W LED and will grow SPS at the sand bed 30" under the water
-Auto dim can simulate sunup and sundown, basically, set it and forget it
-You can program to have a Storm Mode and others, which is a nice detail, but I only use it for "show" in occasions
-2 S400 fixtures will be enough for a 72"X36"X36" tank, my tank has a ~6" plenum. 3 units may be pure awesomeness.
-Each unit has 4 fans (S400 Model)
-Can be ordered with any degree optics
-LED channels can be customize to you, (based on LED's selection)
-4 Channels, each individually controlled
-Each channel can be dimmed to 1%
-Multiple units can be controlled by one control, each connected by a single wire
-Great customer service, even for a China vendor
-Nice look and feel, well made, controller is not on fixture (for those of us that keep them inside canopies)
-Power supplies are external
-Price
-Will grow SPS corals, a fact, not fiction
Cons
-Does not work with Apex, but I have it connected as a light on/off
-The Power supply fans stays on during the off light periods. Remedied by the above
Review:
This fixture has done the job as expected from MH. One of the modules went bad and the vendor quickly shipped a replacement without costing me a penny.