- Brand: Nu-CalgonApprovals: ETL Listed, ETL Classified, CARB CompliantCountry of Origin: USInput Voltage: 110/120-240/277VACManufacturer Name: Nu-CalgonMode Options: Continuous or air flow sensor modePOWER: 25W/525mWRun Time: 30,000 hoursSafety Ratings: UL 2998, UL 867, UL 2043, UL 1598, CSA C22.2UV Type: UVC-LED