look into a few 30-42w CFLs http://www.amazon.com/exec/obidos/tg/detail/-/B001AZOV9K/ref=ord_cart_shr?%5Fencoding=UTF8&m=ATVPDKIKX0DER&v=glance something like that the more lumens the better but keep in mind the more lumens the more heat is produced but with cfls anything below 105w you can grab...