We used this nifty little light for about 10 hours.The batteries held up well, but the light bulb burned out mid-performance.We were prepared with new batteries, not new bulb.Also, it is cheap plastic and needs to be handled very carefully.We'll continue to use it with a stash of batteries AND bulbs.Also, bought the Might Brite Duet Stand Light.These have LED bulbs and position much better on the whole stand of music.Still made in China and cheap plastic, but will suffice for now.{{* *}}