2-4S 40A Brushless ESC Electronic Speed Controller 5V/3A BEC for F450 450mm S500 ZD550 RC Helicopter Quadcopter(4PCS)

About This Product :

• 40A 2-4S Brushless ESC,BEC output: 5V 3A .
• The applicable number of battery cells :2-4S.
• Use for F450 450mm S500 ZD550 RC Helicopter Quadcopter.
• Highly intelligent, adaptive ability, extremely easy to use.
• Note: This ESC is not able to flash the firmware.