Hobbypower 30a Brushless Speed Controller ESC Multicopter Helicopter Airplane
Compatible with: 400-450 helicopters / Aircraft or Quad-Rotor Multi RC HelicopterPackage: 30A Brushless speed controller x 1SpecificationOutput: Continuous 30A, Burst 40A up to 10 Secs.Input Voltage: 2-3cells lithium battery or 5-9 cells NiCd/NIMh battery.BEC: 1A / 5V (Linear mode).Max Speed: 210,000rpm for 2 Poles BLM, 70,000rpm for 6 poles BLM,35,000rpm for 12 poles BLM.(BLM: BrushLess Motor)Product Dimensions:2.13x1.02x0.35inches;0.92ouncesShipping Weight:1.5ounces