Dimmable Ballast and Bulb Life

Sps Dream · 08/21/2012, 04:13 AM

Hi everybody,
Do you think dimmable ballast negative effects bulbs life ( metal or t5 ) .

Thank you.

alton · 08/21/2012, 05:46 AM

I have always been told they will last longer? In warehouses where there are racks for storing items the MH are dimmed to about 30% and then when a motion sensor picks up the forklift it goes to 100%. A few years ago on my 158 I had a dimmable 175w ballast in the center of 2 - 250w MH and the lamps lasted just as long. I cannot remember the name (Solar?) but it would take 2 hours to ramp up and then two hours to ramp down.

08/21/2012, 04:13 AM	#1
Sps Dream Registered Member Join Date: Sep 2011 Posts: 174	Dimmable Ballast and Bulb Life Hi everybody, Do you think dimmable ballast negative effects bulbs life ( metal or t5 ) . Thank you. __________________ Simplicity is the key.

08/21/2012, 05:46 AM	#2
alton Registered Member Join Date: Jan 2005 Location: Zuehl, Texas Posts: 4,460	I have always been told they will last longer? In warehouses where there are racks for storing items the MH are dimmed to about 30% and then when a motion sensor picks up the forklift it goes to 100%. A few years ago on my 158 I had a dimmable 175w ballast in the center of 2 - 250w MH and the lamps lasted just as long. I cannot remember the name (Solar?) but it would take 2 hours to ramp up and then two hours to ramp down.