Benzelsanswered grow question 3 years ago If you want a full spec light with a dimmer switch, and dont want to spend heaps, ViparSpectra is the way to go. The P1000, P 1500 or P2000 series will do the job just fine. If you have a bit more cash and want a bit more light, go for the next step up in the range and get the ViparSpectra XS series in 1000, 1500 or 2000. Its got a better driver so the LEDs put out more light than the P series but the P series has same LEDs as the more expensive XS series. Both have dimmer switches and are full spec.
Im getting a P600 for seedlings and clones and a XS 1000 or XS 1500 for a 4x4 grow tent.