My light is an older model, PhytoMAX1000, not the 2.  A friend gave it to me brand new.  Great friend!  I was afraid it would be too much for my 4x4 tent. This was my first grow.  My leaf tips were brown. There were a few things going on this grow and I was away for 4 weeks.  Not sure if it was the light, the lack of attention or the nutrients.  See my next grow, Cinderella 99 Fast to see those results.