The bright white compact florescence bulb that I paint under has expired. This would be a better story if I knew when I installed it. It has definitely lasted much longer than conventional light bulbs. Initially it dimmed, then dimmed some more, causing me concern that my eyes were too tired or that the power was failing (not that that makes any sense), flickered and went out somewhat softly. Now I am sitting in the dark and wondering if I have a replacement bulb. I probably don’t because of the promise of and fulfillment of the long life of the product. I would estimate the bulb was on for 12+ hours a day. I guess I’ll go to bed and deal with this in the closer to noon side of the AM.