hi! i have a 4 tube fluorescent light in my home. all four tubes failed at once, which has never happened and there were no obvious signs like flickering/buzzing before the failure. replaced all 4 tubes with properly "rated" new ones and no go. i then replaced the ballast and the light worked for about 2 hours then went out again. nothing has changed with any wiring recently. i've asked lowes/HD if ballasts failed like that and both seemed to think not. any ideas? pic of new ballast and bulb here.
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