Db: Damp heat, cyclic (12+12-hour cycle)IEC 60068-2-56: Environmental testing - Part 2: Tests. Test Cb: Damp heat, steady state, primarily for equipment. PV-1200: Environment cycle test for vehicle parts PV-2005: Environment cycle test for vehicle partsTechnical indicators: Temperature range: -40 ℃ ～150℃; Humidity range: 20% ～95%RH; Infrared illumination: when ambient air temperature at 80 ℃, illumination surface temperature is 110 ℃, when ambient air temperature is 85 ℃, illumination su