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:4W
6. Test facility: Manual test
7. Battery:Ni‐cad 3.6V600mA *2pcs
8. Recharge time: 24h
9.Lamp Head:1W*2pcs
10.Luminous Flux:200lm 
11. UL