Demon Core nightlight

IYKYK - it's the demon core. An infamous criticality experiment from the 40s useful mostly as a cautionary tale against arrogance in the face of unforgiving science. 

An LED night light, in a pleasing (perfectly safe and Cherenkov radiation free!) blue glow. 

Designed to use these LED packs: https://www.amazon.ca/dp/B0F2TNF6SW?ref=ppx_pop_mob_ap_share

You'll also need 4x m3x12 socket head screws, 4x m3 heatset inserts and 4x 9mm rubber feet. 

Enjoy. Don't let the screwdriver slip!