Voltage: 220–240 V at 50 Hz Power Input: 900W 500 kg (double line) or 250 kg (single line) of lifting weight Elevation: 18 meters (single line), 9 meters (double line) Lifting Speed: 4 m/min for double lines, 8 m/min for single lines Limits, Both Upper and Lower Thermal Protection Terminal Emergency Stop Switch Device Packed in a Carton Box