Trigger input voltage 3.3V – 5V Two separate LEDs to indicate relay on/off Back EMF Protection Two LEDs to indicate when the relay is on. Works with logic level signals from 3.3V or 5V devices Module with diode current protection, short response time AC control voltage: 250V at max 10A DC control voltage: 30V at max 10A

Working voltage: DC 4.8-6V Provides 3 modes to check servos and ESCs You can adjust the knob to different speeds and check the response time in manual mode. In neutral mode, the servo returns to the neutral point. Automatic "window wiper" mode causes the servo to rotate through the widest possible angle like a window wiper. Connect up to 3 servos simultaneously