Power Pack, Compatible with Series Acuity Sensor Switch Low Voltage Sensors, Communication Method Hard Wired, Input Voltage 120/240/277V AC, Output Voltage 15V DC, Output Current 150 mA, Includes 20 A Relay, Standards RoHS Compliant, Overall Depth 1.88 in, Overall Height 3 in, Overall Width 2.25 in, Maximum Operating Temperature 160 Degrees F, Minimum Operating Temperature 14 Degrees F, Sensor Capacity 14, Color Black, Manufacturer Warranty 5 yr, Horsepower Rating 1 hp