There are other advantages for Photon v2+,
I. They use Cree, Semi, Osram chips as the ones used in AI and Radion. So you get more for your money.
2. The failure rate is very low due to effective cooling. The heat sink area of Photon V2+ is several times bigger than the others. That makes the LED last a lot longer.
3. Two years warranty. And I am local, you don’t have to wait for at least 2 weeks without light like other manufacturers.
4. Reefbreeders photon v2+ comes with mounting legs AND hanging kits. These are $$$$ for other manufacturers.
5.I can program your light before you pickup, since the led fixture remembers all the setting even unplugged, you can just mount it on your tank and plug in the fixture and good to go.
6.If you purchase the fixture from me or from Reefbreeders website (proof of purchase required if you buy directly from Reefbreeders ), I will provide you tech support and service. Also, a loaner light when your unit is in service.