Spider 20A 2-6S LiPo battery brushless OPTO ESC is specially designed to meeting the demand of ever popular multi-rotors,With better quality and competitive price, spider will be your best choice for your multirotors.<br><br>Features:<br>Fast response to throttle<br>Extremely low internal resistance<br>Capable of using BLHELI firmware<br>Super smooth and accurate throttle linearity<br>Capable of one shot 125 feature to work better with your flight controllers<br>Supports high RPM motors, can be matched with most of the motors in the market<br>Use new generation of the MOSFETs to make sure the ESC with low heating and more reliability<br><br>Specifications:<br>Brand: ZTW<br>Continous current: 20A<br>Burst current: 30A<br>Power supply: 2~6S LiPo battery, 5~18S Nicd battery<br>Suit for F450 F550 RC Muticopter<br>Weight: 22g<br>Size: 56 * 19 * 6mm<br><br>Package Information:<br>Package size: 13 * 12.5 * 1cm / 5.1 * 5 * 0.4in<br>Package weight: 34g / 1.2oz<br>Adhesive tape package<br><br>Package List:<br>1 * ZTW Spider 20A OPTO Brushless ESC<br>1 * User Manual<br>1 * Certificate of Warranty