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