The meaning of letters b and l on the peak flash (i.e. input and output)

If the flasher wiring of the electric vehicle has three legs, B is connected to the power input (+); E grounding (grounding); L connect the steering switch (light bulb).

If there are only two feet, the ground wire e is omitted. B is connected to the power input (+), and L is connected to the middle connector of the turn signal switch.

12v36v48v three wiring modes are the same. However, it is necessary to pay attention to the use of flasher with specified voltage to prevent flasher from being burned by too high power supply voltage or not working when it is too low. I hope I can help you!