... lightning. Environmental characteristic This series is with heat resistance, moisture resistance, stability, chemical compatibility, low temperature resistance, radiation resistance and non-toxic. Technical data : ... Cooling fanCool naturally Noise≤35dB( in 1m)Temperature ≤65°CInsulation resistance≥150MΩAnti-power capactity3000VAC/1minDesign life 20 yearsOperation temperatureTemperature: - ...