Walmart has them for $6.50 for two bulbs and the light clamps are $5.98..I think that is about as cheep as it gets for a light set up...I also found 50w HPS outdoor light for $30, it has a auto on...I mean it turns on when the sensor recieves no light...You could tape it, and put it on a timer...I almost picked a couple up, but wanted to think about it abit more..