(2)AC 90~300V Wide AC input range

(3)DC backup output design, from AC failed switch to

Battery mode.

(4)Micro Chip designed, provide over charging, over

discharging and short circuit protections.

(5)Backup (Red) and Charging (Flash) and Full charged

(Green) LED indicators

(6)External replaceable battery design. User can use

Lead Acid from 1.2Ah to 20Ah, depends on backup

time.

(7)Battery Polity reverses protection.