View 2 Lamp T12 Ballast
Pictures. No kits or lamp holder replacements needed. Open box product is new.
If not, the structure will not work as it should be.
Using t8 lamps with a t12 ballast or t12 lamps with a t8 ballast will cause the lamps and ballast to fail prematurely. Ballasts provide enough voltage to start fluorescent lights when you flip the switch. I've heard that 2012 will be the last year they're made. A standard 4 lamp fixture, similar to what most every office in america uses, has a standard 40 watt t12 lamp on a standard magnetic ballast (which won't be produced after june of 2010) and.
