lowes is now carrying the hid lights in the form of metal halides, and high pressure sodiums. ranging from 250w to 600w. these are best. they also carry the 45w compact flourescents which put out 150w of light. cool cfl are great for veg and warm cfl for flowering. use as many as possible. u can never get too much light. cfl's are also much cooler but not as much light as mh or hps.