Mr. Bulk, how about a 20watt halogen bulb in a reflector? or better yet a couple of luxeons placed in a safekeeping box with a power supply, draws minimal current, should last for many years, sorta like a light-box just for the Eco-Drives of long term storage. With a little bit of work a timer could be installed to turn on the light in the box say for an hour or two per 24 hour period, thus guaranteeing the watch always has a full charge. Since I still have a bunch of luxeons gathering dust thats what I am going to try, hopefully the wavelength is enough to activate the recharger/solar film.