A bad light bulb is typically an easy fix and can be done on your own. However, if you notice that the bulb works in another piece of equipment, the bulb might not even be the problem. This doctor asked us this about his handpiece lighting system:
Once you have found the part of concern, you can replace that and be on your way to the next dental patient. We carry a variety or repair parts for you handpiece (ie: bulb, tubing, air switch, or transformer).