-These high pressure sodium lamps grow lighting systems come complete with everything you
need to start growing your plants; including the bulb, ballast,
reflector, socket assembly, 15' lamp cord, wire hooks for hanging
the reflector and instructions. They are pre-wired and take only
a couple of minutes to setup. All grow light ballast assemblies
feature multi-tap transformers. This means that you can switch
them from 110/120V to 220/240V with just on switch.