Before you spend a lot of money for a new light fixture...
I picked up an old desk lamp at a yard sale ($2) and purchased new fluorescent bulbs, one daylight and one grow light.
I used the lamp to start seeds for several plants (note: the lamp should be closer to the plants to prevent "legginess" of new seedlings).
This, plus my kitchen ceiling fixture, provided enough light to keep all these plants (75) happy for the entire winter inside my house.
Good luck and happy growing!
