Input Voltage: 120/277V 60Hz
Number of face : Double
Letter of color: Red
Emergency Duration: 90 min
Power:4W
Test facility: Manual test
Battery: NI-MH 3.6V AA 1800mAh
Recharge time: 24h
Lamp Head:1.5W*2pcs
Luminous Flux:250lm
Surface wall and surface ceiling mount
UL924,NFPA 101 life safety code, NEC, OSHA local and states codes