Picked up a 70watt Hps bulb/ballast-security light for $29+tax(Lowe's). Only had to splice a 3prong plug+cord from some old junk appliance, but a replacement cord is only $8 (or $3 for a plug and $o.25/ft for cord) Pretty cheap imo. And I am using it to suppliment a cfl/floro veg area. Prefect size to just throw in to mix that spectrum up a bit without too much juice or $$$.