Input Power Source: AC100-240V 50/60Hz LED Wavelength: 400 ~ 410mm Temperature Range: 0C ~ 40C (32F ~104F) Weight: 1.2kg (2.64 lbs.) Voltage: Dual 115 ~ 240 Volts Reduce operating time by more than 4 times compared to UV Model. Last setting mode is automatically saved for next time use. RANGE OF ENVIRONMENTAL CONDITIONS: Indoor use only Temperature between 5?C ~ 40?C Humidity Min. 50% ~ Max. 80% Main Supply voltage fluctuations up to ± 10% of the nominal voltage. Pollution Degree: II