Sun System Harvest Pro HPS 400W Ballast 

With our exclusive Power Pointer™, it's easy to switch from 120 to 240 volt power! Simply unplug the detachable 120 volt power cord (included), turn the Power Pointer™ arrow down for 240 volt power and plub in a 240 volt power cord (sold separately). THAT'S IT!

High quality ballast will ensure years of trouble-free use.

Lamp cord receptacle - Accepts all Sun System® lamp cords (sold separately). "Donkey Ear" flaps hold lamp cord plug securely in place.

High temperature capacitor ensures long lasting durability.

A barrier wall between the ballast and the capacitor/ignitor helps keep the critical components cool.

Heat slots & louvers remove excess heat from the ballast.

Aluminum ballast enclosure dissipates heat.

Ballast features copper windings.