Description：

Low-volt and High-Volt Designed Separatedly, Safety and Good  Performance
Auto-Switch into Emergency Mode Upon Power Loss
Battery Over-Discharge Protection During Emergency Mode
With Charging Circuit to Avoid both Broken Circuit and Short Circuit
Intelligent Charging Function,  Nickel-Cadmium Battery, Long Life, Durability
Manual Testing, with Audible and Visual Alarm
Monthly Self-Testing Emergency Performance, Maintain Cost Reduced
Yearly Self-Testing for Battery Dischage
For Maintained Emergency Lighting
Steel Sheet Housing, Steel housing with white powder coating
Operating Voltage AC220/230V   50/60Hz
Backup Duration 1.5/3 Hours
Charging Time ＜20h
Operating Temperature 0-45℃