Typical life is about 6 months under normal or average usage conditions. The LED version (03100-LED) has a 7 year warranty and typically lasts about 10 years.
Suits the following :
Current Products
Otoscopes: #20260, #25020, #21760
Illuminators/Transilluminators: #26535, #27050, #41100
3.5 V Handle Adapters: #73500, #26038
Obsolete Products
Otoscopes: #20000, #20262, #25000, #25200, #21800
