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Electric Speed Controllers by HW HOBBYWING. Details:Excellent waterproof and dustproof performance it is easy to deal with various climatic conditions and harsh environment. Smart freewheeling technology makes the esc have higher driving efficiency and lower operating temperature and the stability and reliability of the esc are further improved. Built-in powerful switch mode BEC continuous current up to 5A instant up to 10A and support 6V/7.4V adjustable easy to drive various powerful and high-voltage steering servo. Multiple protection functions: battery low voltage protection esc overheat protection throttle signal loss protection current protection capacitor overheat protection. It has an independent programming port. When connecting the program card it is not necessary to pull the throttle cable out of the receiver which is more convenient to use.