I just bought a real 90w ufo with uv and honestly its keeping up with my 400w hps and keeps my room at 80 degrees during the day 75ish at night.i also used two giant cfls for vegging before i got my ufo and they use 65w and put out like 300w each and my plants are doing great compared minus a small ph issue i need to correct.i also have that issue of skunk and the hightimes that supports the same claim.while i agree all businesses are out for the most profit,i doubt two highly reputable mags dedicated to medical growers would put out all these false claims and jeopardize all their readers much needed medicine .my self i have severe chrons disease with bad vomiting,no appetite,and even less energy.im on a large hand full of dangerous meds and honestly even my marinol script doesnt help, whole cannabis is where i get my relief and appetite .im on ssi and have two boys.if i just wasted my cash based on these magazines word i would be very upset.to every one knocking the leds i say try them first.i have and although i want to get another one its not because this one isnt powerful,its because i would like to utilize my whole closet as it is very large and grow about double the plants next time and also some sacramental san pedro cacti .i bought my light off ebay from gotham products it is produced in the usa by lighthouse hydro and it won first place in the annual grow boys competition 2009 in new york where they put it up against an array or 90w ufo shapped products including the more expensive 599.99 models and it out grew them all.it averages about 289.00 in their store but i won my in auction on ebay for much less.i am very happy with it and will buy another so that i can try to produce enough for my mother who has cancer and a few other sick friends aswell .at no charge to them of course