1 20,000H life for Laser light source: Approximate time until brightness decreases 50% from first usage. Measured by acceleration text assuming use of 0.04 - 0.20 mg/m3 of particulate matter. Time varies depending on usage conditions and environments. Replacement of parts other than the light source may be required in a shorter period.
2 No maintenance for the light source required up to 20,000H.