Coleman Lantern Joule Thief Hack
This is a Coleman Lantern I modified for a friend of mine. He wanted a JT circuit and also, a red filter so as not to mess up his night vision. I made it so the red filter can be easily removed if not desired. I am using a modified surplus flash circuit driving a modified Cree 60 watt equiv. led bulb. So now it runs much longer on a single battery rather than the eight D cells it came with. This light will be able to use “dead” batteries that others have thrown away. More infos at overunity.com in the joule thief topic areas. Thank you for watching.