Dutch Pimp is correct. HPS is the only way to go when your looking for cheap. especially the 600 watt HPS. It has the highest lumens per watt of any other type of grow light out there. More lumens means tighter buds. Meaning better effiency. So if your looking for a light that is good to grow with for a average size grow get a 600 watt HPS. You wont be disapointed. Trust me on this. If you need more info its all over the web. Just search and you will see.

My very first grow I used CFLs and the money I spent on bulbs I woul dhave been better off getting the HPS. I would have had more lumens for the same price. The only issue would have been the heat which my room was vented anyways so. It really wouldn't have been a problem.

GET THE 600 Watt HPS. Well worth it.