The MTSKR2005WF remote has one 30V 3A Relay mechanical switch and one 20V 2A transistor electronics switch for esk8 lights, etc.
1. Relay Switch:
-When relay switch is in original position(no display of ① in Main interface) , COM(common point) and CLO(normally close) are connected.
-When Short press Function button 3 times (display of ① in Main interface) , COM(common point) and OPE(normally open) are connected. Short press Function Button 3 times, relay switch is off.
![relay switch on MTSKR2005WF remote waterproof remote controller hand remote for electric skateboard elongboard mountainboard](https://cdn.shopify.com/s/files/1/0089/3065/6320/files/5_df49348a-d9a1-4db0-8990-8be050800af8_600x600.jpg?v=1605005285)
2. Transistor Switch:
![MTSKR2005WF MTSKR20V2WF how to control light with this waterproof control light with transistor switch](https://cdn.shopify.com/s/files/1/0089/3065/6320/files/2_06c1c548-a646-410c-9c21-454dc6f64574_600x600.jpg?v=1622788625)
Short press Function button 4 times , ② will display on main interface, transistor switch source will be connected to GND and turn on LED.
Short press Function button 4 times, ② will disapper on main interface, LED is off.