My 2 Ott lights are about 15 yrs. old & I have never changed a bulb. I love the goose neck one that clamps to my sewing cabinet/table & I can shift around to wherever I'm working. It make a lot of light as I don't have ceiling lights & spent many all nighters sewing away. I have the smaller flip up one on top of a chest of drawers that lights up my cutting/ironing board.