The LED is a solid cold light source, epoxy resin package, anti-vibration, and there is no loose part in the lamp body. There are no shortcomings such as filament light-emitting, heat deposition, light decay, etc. The service life can reach 60,000 to 100,000 hours, which is a tradition. More than 10 times the life of the light source. The LED performance is stable and can work normally in -30~+50°C environment.