Input Voltage: 120/277V 60Hz
Number of face : Single or Double
Letter of color :Red
Emergency Duration: 90 min
Power:4W
Test facility: Manual test
Battery: Ni‐cad 3.6V1000mA *2pcs
Recharge time: 24h
Lamp Head:1W*3pcs
Luminous Flux:300lm
Recharge time: 24h
8” height letter
Wall mounting and side mounting
UL924,NFPA 101 life safety code, NEC, OSHA local and states codes.