I discovered 2 nice Hella driving lights the other day at a flea
market.  There about 6.5" round and 2.76" thick with an all chrome
shell.  The guy said that they came off of a 60's Mercedes.  I took 1
apart and the light (bulb) sticks into a metal thimble which is gun
metal blue - probably from the heat.   Can anyone shed some light on how
these work?  Does the bulb heat the metal thimble enough to give off
light or is it just a reflector?  I plan on using them on my Vanagon
Gary
Baltimore
88GL