FLIPSKY Dual FSESC 4.20 Plus (Based on ESC) with Anti-Spark Switch Integrated Anodized Aluminum Heatsink Skateboard Electric Speed Controller E-Bike Longboards Skateboarding DIY ESC

Integrated anti-spark switch function in the PCBA (Reminds : the LED button is defaultly inserted in the switch in shipping status. DO NOT power on switch without the LED button connected). FOC(Field Oriented Control) makes the motor more smooth and less noise and even saving much power. Adjustable protection against: High input voltage, High motor current , High input current , High regenerative braking current (separate limits for the motor and the input), Rapid duty cycle changes (ramping) More thinner for compact in case With heatsink: 64 x84x20.5mm(Include Heatsink) Top Service: If there are any question or need help , just feel free contact us , we will always here help you out within 24 hours.