The Hypotek Ballast 120/240V Dimmable Ballast emits an average of 15-20% more lumens than magnetic ballasts, which equals bigger yields for you! Dimmable to S-Bright 100%, 75% or 50% these Ballasts are more. The Hypotek Ballast 120/240V Dimmable Ballast emits an average of 15-20% more lumens than magnetic ballasts, which equals bigger yields for you! Dimmable to S-Bright 100%, 75% or 50% these Ballasts are more efficient and quieter, and produce more natural light. The 1000W Hypotek Ballast 120/240V Dimmable Ballast operates both MH and HPS lamps, and has an internal resin coating for extra protection and longer life. An external breaker prevents damage.