The Doorking 1000-080 is inverter/back-up power system that provides power and continuous operation when 120VAC primary power has failed. Modified Sine Wave Inverter can be used to power a single Gate Operator with a 1/2 HP motor and basic Access Control Systems. DoorKing's Model 1000 Power Inverter and Backup system is designed to provide backup power for your vehicular gate operator and access control system when primary (AC) power fails. Unlike DC Gate Operators that can only back-up the gate operator itself with internal batteries to run the DC motor, the model 1000 converts DC battery power to AC power to keep all system components, even the ones that are powered by AC Accessory transformers, operable at all times. DC gate operators do not convert their battery power to AC rendering all AC components of your system inoperable. The model 1000-80 can only be used with products that use a PSC (Permanent Split Capacitor) motor. Do Not use the model 1000 on products that ultilize a motor with start windings as the start-up amerage draw on this type of motor exceeds the maximum output available from the model 1000 and will cause damage to the inverter. The differences in these two types of motors is difficult to recognize, so we suggest that you contact the manufacturer to determine what type of motor is used in their product.