Lighting for a planted 10 gallon?

#1
I'm looking into setting up a planted 10 gallon, but the lighting I have for it now is just your basic 18" 15-watt fluorescent. I want to average at least around 3wpg, but I can't seem to find any 20" strip lights with enough wattage. Could anyone possibly point me in the right direction? I found a Coralife 20" compact fluorescent strip light, but it has a 50/50 bulb in it. I don't want to have to buy a whole separate bulb for a new strip light!!