you will get results with the 150 i use 150's myself just keep it close to her with out burning her leaves and you should do fine, as for yield that depends on the plant and the grower so you cant really judge.

here is my plant 1 day from harvest using a 150watt hps

http://boards.cannabis.com/attachmen...8&d=1160622547
invision Reviewed by invision on . FLOWERING!!! im growing my plant under a two foot flouresent witch does fine but i am told there not good for flowering...i have a 150 watt agrosun grow light...would that be good enough to flower? your expertise is welcome here :dance: :rasta:SativaKali:rasta: Rating: 5