Emergency lighting LED power pack for use with LED luminaires that require 25 VA/W or less of AC power. Operates normally-on, normally-off or switched AC lighting loads. 120/277 VAC Auto Select. 5 year warranty. 0°C to 50°C ( 32°F to 122°F) Temperature Range. ?UL 924 Listed, UL Damp Location Listed, NFPA 101 (Life Safety Code), NFPA 70 (National Electrical Code) Compliance.