I love ingenuity! I cut the male electrical end off an old extension cord and attached some battery clips to wires. That way I can hook my worklight up to the car's battery instead of dragging out a 120V AC electrical cord. Also good if I a need light but I am nowhere near an AC outlet. Just have to remind myself to swap bulbs! The bulb is a 12V 50 watt used in RVs. I have only been able to find a 25 watt version in a 6V bulb. Not sure what it's application is for. Here is a small work light that plugs into the ciggy lighter. I've been carrying around in the toolbox of my 68 Ford for about 15 years. I can't remember where I got it. I think Big Lots because I recall buying a lot of tools there when I was putting together a toolbox. I would like to find some more like this.