We bought a Lithonia fluorescent shop light from Home Depot for only 13 dollars! It holds 2 40 watt T12 linear bulbs and does nicely. It had some good reviews online and some bad reviews, but mine has not given me any problems so far. The only thing I will warn you is that the tabs that the lights hook into need to be pulled out until they snap into place. At first I thought my light bulbs were the wrong size because they wouldn't fit, but the tabs just were not fully pulled out.
We placed the plants on a desk in our extra room next to a window that gets a decent amount of sun also so the light fixture is bonus on top of that.
6500k (Daylight) is what plants use to flower and 3000k (Soft White) is what plants use to grow greenery.
Yeah laugh that was funny. PS If you don't get it don't try too hard you won't get it.
Small fluorescent bulb hanging over my Big Boy Tomato Plant and my Super Sweet 100 cherry Tomato Plant : ) Which I also plan to keep indoors safe from bugs, birds and beasts.