Detailed Product Description Hydroponic Ballasts & Sodium LampRaw Coil Ballasts Item No.:A=15130001, 1000WB=02-130, 600WElectronic Ballasts Item No.:A=16103001, 400W, 100-168VB=16103002, 400W, 168-268VC=16103003, 600W, 90-270V(with fan)D=16103004, 600W, 168-268VE=16103006, 1000W, 90-270V(with fan)F=16103005, 600W, 100-168VSodium LampItem No.:A=04-125, 600WB=17125001, 1000WC=06-125, 1000W