Adopts Plexiglas and PC plastic created by Bayer Material Science AG with partly glossy and electroplating finish it enjoys better pration and lighting effectIlluminates a hemisphere range with the opposite direction of the light beamHigh temperature resistance with favorable stabilityDirectly covers light head simple operationSuitable for flashlight with a 21-22.5mm diameter such as Fenix LD10 LD20 PD20 PD30 HP10 and HL20