The lamp itself is made from 30 UV LEDs and 100Ω resistors. [Becky] lined the inside of hers with silver sticky paper to help distribute the UV light evenly.

A Dutch artist has launched an installation which he says aims to make public spaces safer by using UV light to kill the virus causing COVID-19.

Push button LED puck lights are pretty boring on their own. Take it apart and solder in your own colorful LED bulbs for a little holiday fun, or a UV bulb for a DIY blacklight.

[David] has done that work and shared it for anyone interested in serious UV fluorescence photography, along with a white paper on the process. We’ve seen [David]’s work before.