This is a simple light with a recess in the top and a rechargeable LED puck fitted securely in the bottom.  The sides on the light are cut with a Celtic cross design which is also engraved onto 4 natural slate coasters that sit in the top when not in use.  The base of the recess is also pierced with holes so that the light can come out at the top when the coasters are not in place.

The light I use is an 86mm circular LED puck that I buy in.  This is rechargeable and has a remote control to change colours, etc.  It fits into a 3D printed base which is then glued into the bottom of the light.

This is cut on a larger laser but I do the slates on an F1