1. Input Voltage: 120/277V 60Hz
2.Number of face : Single or Double
3. Letter of color:Red
4. Emergency Duration: 90 min
5. Power:3.7W
6. Test facility: Manual test
7. Battery: NI‐Cd 4.8V 300mA
8. Recharge time: 24h
9. 8” height letter
10.Universal (wall, side or ceiling) mounting.
11. UL924,NFPA 101 life safety code, NEC, OSHA local and states codes.

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