>>>Does anyone else experience quick life on the GE > Sunshine T12? (Chroma 50)<< Well, yes and no. I just had one burn out after only three months of use. Then again, I was swapping the light fixture back and forth between two adjacent 10gs every 12 hours, so it was on 24 hours a day. This probably equates to a burnout after six months of regular use. - Erika