Experience an upgraded flight experience with our Original Emax Simonk 20A Brushless ESC Electronic Speed Controller for DJI Flame Wheel F450 Multicopter Quadcopter ESC! Built with a high-performance micro-processor, it features excellent compatibility and high motor drive efficiency. Further optimized for multirotor applications, it is equipped with low voltage cutoff protection, overheat protection, and throttle signal loss protection to ensure aircraft safety. Plus, this ESC is user programmable, which means players can program it via transmitter stick, digital LED program card, LCD program box, or PC software. Have a try!<!--Features --><p>FEATURES</p><ul><li> Built with a high-performance micro-processor</li><li> Excellent compatibility, high motor drive efficiency</li><li> Further optimized for multirotor applications</li><li> Smooth, linear, quick and precise throttle response</li><li> Equipped with low voltage cutoff protection, overheat protection, and throttle signal loss protection</li><li> The firmware of ESC can be updated through built-in USB adapter in the professional LCD program box</li><li> User programmable</li><li> Can be programmed via transmitter stick, digital LED program card, LCD program box, or PC software </li></ul><!--Specifications --><p>Specifications</p><table width="100%" border="0" cellpadding="0" cellspacing="0"><tbody><tr><td width="131"> Output</td><td width="365"> Continuous 30A, Burst 40A Up to 10 Seconds</td></tr><tr><td width="131"> Input Voltage</td><td width="365"> 2-6 Cells Lithium battery or 5-18 Cells NiMH Battery</td></tr><tr><td width="131"> BEC</td><td width="365"> Not Available</td></tr><tr><td width="131"> Refresh Rate of the Throttle Signal</td><td width="365"> 50Hz-432Hz</td></tr><tr><td width="131"> Max Speed</td><td width="365"> 210000rpm for 2 Poles BLM, 70000rpm for 6 Poles BLM, 35000rpm for 12 Poles BLM (BLM = BrushLess Motor)</td></tr><tr><td width="131"> Dimensions</td><td width="365"> (2.17 x 0.98 x 0.47)" / (5.5 x 2.5 x 1.2)cm (L x W x H)</td></tr><tr><td width="131"> Weight</td><td width="365"> 1.09oz / 31g </td></tr></tbody> </table><!--Package Includes --><p>Package Includes</p><ul><li>1 x 20A Brushless ESC</li></ul><!--Extra Info --><!--produts_compatibility -->