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