Motorcycle flash light circuit

People all hope that motorcycles will have a turn flasher. If you install a turn flasher yourself, it will be economical and convenient for you. The circuit
structure is simple, materials are easy to obtain, the flash frequency is stable and reliable
, and the turning flash is also suitable for bicycles and electric
vehicles.
    The value of transistor VT1 should be 30-40. If it is too large, it is easy to stop
oscillation. The value of VT2 should be 50-100. The power supply can
use four AA batteries connected in series. RP potentiometer, adjust it
to change the flash frequency. Small relay K can be of
type JRX-4, or it can be homemade.