switch: it is latching (push on, then push again for off)Thumb Twist Grip Throttle with Battery Meter and Switch
Voltage: 24V, 36V or 48V
Net Weight:0.22kg
A pair of the Thumb Twist Grip Throttle with Battery Meter and Switch
Brand: WuXing
Yellow and Brown: Round Red Switch------The brown and yellow wires are the switch on the throttle. The orange wire from the controller, which is presently connected to the big red wire needs to have battery voltage to make the controller work. When disconnected, it puts the controller into stand-by mode. So, you need to cut it half way from the connector and join each end to the yellow and brown wires from the throttle, then you can switch between stand-by and normal operation using the switch on the throttle. A good idea is to connect the green wire to the controller side of the switch, then, when you put it into standby, the battery level indicator lights go off, and they come on when you switch to normal mode.
you can find the Wiring Diagram