Hi again Ausatco - thanx again for your thoughts but.....
It's unlikely that too LOW a voltage will harm anything, the worst that can happen is it just won't work.
V=IxR Resistance remains the same, voltage drops, current escalates. It's generally the cause of many a component burnout in my humble experience.......
Point regarding spiking hoisted aboard though, thanx fer that!
Well, guess I'm not going to risk it now. Better to play safe methinks.
Tallyho!