This is a headlight for longboards or skateboards. I designed it for my Landyachts Tomahawk 2014 with Caliber II trucks. The mount acts as a 1/8" riser while proving support for the lights. They are designed to hold two 20mm oval lenses over the LEDs to create a nice spread on the ground that keeps the light out of the eyes of passersby.

The oval lenses used can be found here: https://www.digikey.com/product-detail/en/dialight/OP520/350-2016-ND/1240398

This is part of a larger project titled Teltail Lights which brings interactive lighting to the skating community. The PCB for the Teltail Lights controller and the companion app will soon be available from my website: https://www.solidcircuits.net

The design of the "base" part is the most likely to change, so the latest design can always be found here: https://a360.co/2W6fcNm