Summary

The LED lamp uses the same basic design as https://www.thingiverse.com/thing:2852516, but I replaced the sharp corners by smooth curves by rounding/filleting the 7-sided polygons and using a single Loft surface for the outside shape rather than a series of flat ruled surfaces. This lamp printed in 8 hours 12 minutes using a layer height of 0.200 mm and a print speed of 80 mm/sec. The lamp accommodates either a battery operated or wall powered "puck" LED light. This blog page has links for all the wall powered parts needed and shows how to hook everything up: http://birkbinnard.com/blog/wall-powered-led-lights/. For battery powered puck lights just go to any large home improvement store or simply Google "LED puck light".