This is a conversion from the light bulb to LED. The light uses 4x 1W LEDs in series with a 75 ohm resistor. A modded smashed light bulb was used to make the connection to the power. Once all the glass is gone from the light bulb, the wires can be soldered to it.
This is the model light: https://www.ryobitools.com/power-tools/products/details/18v-flashlight
The parts can be found here: https://www.thingiverse.com/thing:3033898