The CORRECT Farnel LED is powered by 6 volts, so I got a battery enclosure for 4 AAA batteries with the switch on it from Radio Shack. Simple and Works like a charm. I haven't fried anything, so I must be doing something right. I ordered the LED from the US distributer. They are something like $2.95 but BE WARNED they charge a $20 IMPORT FEE on top of it as they have to order this from overseas. It's NOT a stock item.
My gauntlets at present are being painted by PONTE, so I don't have anything installed yet, but I hope to have PICS when everything is finished.
Hope this info is helpful.