mmm, rather than generating wind using the same process as MHD Propulsion I wonder why we can't improve existing use of thermocouples in pelter junctions:duh2:
I can see the potential of this in consumer electronics but I don't see any correlation with it to flashlights. Bike-light perhaps but for handhelds, turning out air cooled LEDs won't help water-resistance any.
I think this should be moved to Personal Gadgetry & Non-flashlight Electronics or Fixed lighting, but thats just me