first off...i was wondering how the cfls stretch your plants...especially with that kinda wattage...i have lower wattage cfls...although i have a numerous amount of them, i only started out with 3 or 4 and my plants didnt stretch...anyway man....all you gotta do is go to walmart or lowes ANY APPLIANCE store where light bulbs are sold and ask them for COOL WHITE COMPACT FLUORECENT LIGHT BULBS...more than likely you will get the ones that say the equivelents to incandecent light bulbs...look for the most wattage you can find...ALSO...you can get those big fluorecent bulbs that come in a tube...get High Outputs and they will do just fine...and hell...if ya can find one...get a 400Watt High Pressure Sodium light bulb...save ya time and money....they are like 25$ and will do ya for the entire grow...