400w HPS/MH HID Digital Ballast

Growlush digital ballasts provide high performance and reliability with all the features you expect from a modern digital ballast. These ballasts are dimmable (50%, 75% ,100%, and 110%) and have no fan allowing them to run silently. They can power either MH or HPS bulbs, run on 240v power, and can plug into any standard household outlet or extension lead.