Hi,
I remember seeing somewhere that you could use a diode on each wire of
a pair so that two independent lights could be used by reversing the
positive and negative leads.

I would like to put a white strobe light on top of my mast but as the
mast is wooden box section in construction I cannot run another wire.
I do not wish to run external wiring.

Would someone be so kind as to tell me how and what size diodes to buy
or how to calculate it. My masthead bulb is 25 watt from memory.

Thanks
Peter hendra
NZ yacht Herodotus