Specifications dimensions: 21.5 x 12 x 22.7 mm voltage: 4.8 to 6 VDC weight: 9 g speed: 0.09 sec. for 60° at 6 V torque: 1.4 kg.cm at 6 V working temperature: -15° C to 50 °C connection type: 3 wires: brown (gnd) - red (+) - orange (signal) connection diagram: http://arduino.cc/en/Tutorial/Sweep