Features:Lens Material: PC;Lighting Source: LED;Color of lamps: R-red, Y-yellow, G-green,Volt.: 60V–500V;Nature of supply: AC ;Rated Temp : T90;Life of continuous working: Typically over 30,000 hours.The end of life for a lamp is not usually a sudden failure.Main technical parametersEnvironmental Temperature: -25+55;Working under vibration frequency 2-80Hz,acceleration at 0.7g;Pollution rank is three grade and installation category is III;Protection Degree: Head IP65Voltage of working frequency: 2.5kV (AC valid value), 1min;Frequency: AC 50-60Hz