I had to buy a floor model ott light when I was quilting my black quilt. I couldn't see the stitches!! But I got it with the 50% coupon and I love it. I use it all the time now next to my quilting frame and I haven't had to buy a replacement bulb yet. I think I'll get one when I have the next 50% off coupon because the bulb will burn out when I'm in a rush to finish a quilt.... late at night when all the stores are closed. Thanks for this question because now I'll be prepared.