My 2X 5w bulb 300w did really well until I got busted, (2 grows), and the fuzz got them. I got the 400w afterwards and it does ok in my 32x32 inch shower, but I wish my buds were more dense. I was considering converting it over to 3 or maybe 4 cob lights, (4 may be wishful thinking), if/when it goes bad. In the meantime, I'm trying to get the cash together to expand my grow area, (just need to put some anchors in the ceiling and hang the lights). I'm trying to decide between Timber and BigSmo. Anywho,that's my goal for this year....to double my growing area!