BETU 2Pack 20KG RC Servo,Steering Servo, Waterproof Servo with Full Metal Gear and 25T Servo Horn(180)

20KG High Torque RC Digital Servo are ideal for cars, airplanes ,and robots. -High-speed big torque digital servos. -Servo Equipped with strong Aluminum gear, iron core motorfull Metal Gear -CNC aluminum middle shell -Less Noise, light weight -Stable and water-proof Apply Environmental Condition Storage Temperature Range: -30?~80? Operating Temperature Range: -25?~70? Operating Voltage Range: 4.8~8.4V Mechanical Specification Size: 40*20*40.5mm Weight: 675g Gear ratio: 5Metal Bearing: Double bearing Connector wire: 3005mm Motor: Carbon brush motor Waterproof performance: IP66 Electrical Specification Operating Voltage: 6V / 8.4V Idle current(at stopped): 200mA~6V / 220mA~8.4V Operating speed (at no load) 0.19 sec/60-6V; 0.14sec/60-8.4V Stall torque (at locked): 24kg-cm-6V; 30.5 kg-cm-8.4V Stall current (at locked): 2.2A-6V; 2.9A-8.4V Control Specification Control System: PWM(Pulse width modification) Pulse width range: 500~2500sec Neutral position: 1500sec Running degree: 180 (when 500~2500 sec) Dead band width: 5 sec Operating frequency: 50-330Hz Rotating direction: Counterclockwise (when 1000~2000 sec) Package Included: -2 x 20KG Waterproof Digital Servo -2 x 25T Adjustable metal servo arm -2 set of accessories