I've been researching for a while now on LED guys, there's a lot of diff between branded ones and china ones. The good LED brands are CREE and Bridglux, most DIY kits have these two brands in 3w capacity. They are the most reliable for coral growth. For guys who are doing it the first time and don't want to screw it up get the solderless kits, they are better and easier cause they just snap on like lego, catch is that they cost a bit more cause the heatsinks will have to be pre-drilled by them but my advice is that its more worth it than trying to spoil your new LED trying to solder it. Cost goes up by about 30 USD for the solderless kits. Reefledlights.com is where im intending to get mine, they use CREE lights and yup they are reliable.