My voltage converter arrived from China today, (
http://www.ebay.co.uk/itm/281641111105?ssPageName=STRK:MESINDXX:IT&_trksid=p3984.m1436.l2649)
First thing; it's a bit bigger than I was hoping for; half of it is a huge heat-sink. I don't think it's going to fit inside the headlamp shell or the headlamp cowl. Might have to put it under the saddle or maybe remove the heat-sink and fix the device to the metal inside the toolbox instead. As it's an open circuit board I need to think about protection from the wet so the toolbox sounds good but then I'd have to make my tool roll slimmer!
I've been in the man-cave carrying out some initial experiments on the bench.
I've connected a 12v bulb into the output terminals and my 6v motorbike battery is connected to the inputs, (via my multimeter set to Amps).
The gizmo is programmable, (no instructions came with it though!). Anyway, I've managed to set an output voltage of 14v, (as advised by, (I think) Triton Thrasher) for the bulb. The bulb is lovely and bright. The input current from my 6v, (13 AmpHour) battery is 5.7 amps.
Given that my tail lights are LED's my thinking is that if the battery had no charging it should provide about two hours of light. Does all this sound ok to you electrical guru's?