The Wenger Flashlight tool is a small incandescent flashlight that is fitted into the layers of a couple specialized Swiss Army Knives known as the Spot Light Series. The light is activated by a momentary-on push-button switch located on the back of the knife (the corkscrew side). The flashlight is powered by 2 AAAA batteries, and the bulb is user replaceable. The life of the power source is rated at 100 activations at 30 seconds each.
The overall design such as housing, mounting, switching, and power-source are closely related to that of the Laser Pointer Tool.
See also:
LED Light a white light layer tool.