Regular lights are not going to do much for your plant my friend. However...you can pick up some CFL (Compact Flourescent Lights) at your local Walmart, Lowes, and sometimes Home Depot. They run about $8.00 a bulb. Depending on what stage of developement your plant is it, will depend on what bulbs you want. If you're still in the vegging state...then look closely for either cool white, sunlight, or even daylight. These bulbs have a temp of 6500K which is just about what you want when vegging.

If your plant is already in the flowering stage, you need to get some warm spectrum lights on it. Usually in the 2100K region, I believe. These numbers may not be exact as I'm just remembering them...but they're definitly close. The more LUMENS the better as a whole.

Which means...look at the package or bulbs, you will see on there somewhere a measurement that says Lumens. Get the bulbs in the color range you're looking for that put off the most Lumens. And like I said, the more Lumens, the better your yeild will be.

Hope that helps ya.