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	Subject - Kilo Watts/Horse Power Sparky How many Kilo Watts does a 1/2HP Air Conditioner use and what is the LRA/FLA Scott Vickrey 1 hp = 745.699872 Watts So, 1.5 hp = 1,118.54981 Watts or 1.1185 Kilowatts. LRA = Locked Rotor Amps or the amps when the motor cannot rotate. FLA = Full Load Amps or the amps when the motor is running 100% loaded. noksutau If the compressor is 1/2 horsepower it will likly require apx 380 watts plus cooling fan for coils and recirculating fan for room air.