StaPo wrote:
On 11 dub, 22:15, wrote:

Has anyone got the connection details please ?...
There is a 3 pin connector on the rear - It is also labled 4v 40ma
any help appreciated

(unit was formerly designed to be powered by 4.5V standard "flat" 3
cell zinc-carbon battery).

These turn indicators were "emergency" instruments, designed to run off
an independant 4.5V battery. On the other hand, they were not designed
to run for a long time, though.

One connector is positive, one is negative and one is empty. I don't
know which is what, but considering the simple design with a low voltage
DC motor, you most probably won't break anything by just trying.