I have a cheap halogen fixture above my workspace. 1 bulb in each end with a glass plate under the bulb and a wire cage around the glass. I came home to find 1 glass plate had burst and pieces were all over the floor. The light was originally supplied with 250 W bulbs. I have a 300 W bulb in the side that broke. (The bulb is still working fine.) I have had this arrangement in place for almost 10 years. My question is did one of my kids do something to the light or did it spontaneously burst? Neither kid is admitting to anything, but has anybody else had a glass plate shatter like this? Luckily it was like car glass and ended up with little squares all over the floor instead of dagger like shards.