A few things about the
Gavita's vs. all the other LED, including the above one............
Check the warranty...........
Gavita offers an industry leading 5 year warranty, I haven't seen anyone else offer anything above 3 years. The reason they offer a better warranty is because they don't "push" the diodes to the same degree, so they last longer.
Next up is the amount of diodes the lights include. The
Gavita has around 3300+, most of the other similar ones have about 1000 less diodes. This is why they don't have to push them hard, the extra amount of diodes makes up for the difference in light.
Lastly, I don't believe the above claim of 3.0 umol/J.........what I've read is many manufacturers overstate that number and it's more likely around 2.8 or so. There is a calculation to figure it out which I don't know, but I see others discussing it......... so make sure you check that out thoroughly.
When I bought the
Gavita's, I knew absolutely nothing about LED's. I have grower friends in Colorado, with big buck operations. This was the unit recommended to me, and I just bought them. I didn't ask any questions, I trust them explicitly.