Suited For 1/2 Thru 3 HP, Operates From 95-288 VAC, Increases Compressor Starting Torque Up To 500, Air Conditioning Units From 4,000 To 120,000 BTU, This Unit Can Be Used On All PSC Single Phase, Low Voltage, For Tight Compressors, Quick Recycling, 1 White Wire, 1 Black Wire, Weight: 11.2-Oz, Dims: 6-3/4"H X 3-7/8"W X 1-3/4"D