so im looking for a cheap light for growing one or 2 plants. do you think a 150 watt incandecent work?
Don't use an incandescent. If you want to stay cheap, use CFLs (compact fluorescent lights). You will want several and they need to be within a few inches of the plants. Get this book at your local Borders (or whatever the nearby big book store is). It will help a lot: http://www.amazon.com/Marijuana-Bud...bs_sr_1?ie=UTF8&s=books&qid=1201295484&sr=8-1
Dont use them they really dont work. I've grown under fish tank tube lights but they can cost quite a bit n the tubes dont last long. If ya in the uk screw fixs direct do cheap sodium flood lamps for around £50
Fluorescent Fixtures are really very helpful for you and you can buy here at a affordable rate - http://www.hydroasis.com/hy/items.aspx?id=409&item=fluorescent-fixtures/forum