I have a 600w dimmable HID ballast for my MH & HPS bulbs... It can be switched to 50%, 75%, & 100%.

Does this mean the wattage output will increase/decrease?

Or does it just increase/decrease the light output (lumens)?
allando Reviewed by allando on . Dimmable ballast questions I have a 600w dimmable HID ballast for my MH & HPS bulbs... It can be switched to 50%, 75%, & 100%. Does this mean the wattage output will increase/decrease? Or does it just increase/decrease the light output (lumens)? Rating: 5