The ballast in my 4 lamp fluorescent fixture has gone kaput. I flipped on the light switch - pop, and then none of the lights worked. I tried the bulbs in another fixture. They worked fine. I removed the ballast. It is a Keystone ballast
formatting link
Catalog Number - KTEB-432RIS-1-TP, Product Class - Electronic Fluorescent, Lamp Type - F32t8, Lamps - 4, Volts - 120, Hz - 60, Line Current - 1.50amps. I found a GE ballast that is Product Class - Electronic Fluorescent, Lamp Type - F32t8, Lamps - 4, Volts - 120 - 277, Hz - 60, Line Current - .43 amps. I wired it up connecting the 2 red wires on the ballast to the 2 red wired on the fixture, the 2 blue wires on the ballast to the 2 blue wires on the fixture, the 2 yellow wires on the ballast to the 2 yellow wires on the fixture, the white and black wire on the ballast to the white and black wires on the fixture. I turned the breaker back on and flipped the switch on. Two of the 4 lamps will light up brightly. One has a dim glow. The 4th has no light at all. The GE ballast was the only 4 lamp ballast I could find that came close to matching the specs of the keystone ballast with 2 differences. The voltage on the keystone was 120v - the voltage on the GE is 120 - 277 v. The amps on the keystone was 1.50, the amps on the GE is .43. I'm wondering if either of these 2 differences would cause all lamps to not light up. Does anyone have any ideas? I certainly would appreciate any advice.