This table lamp is designed to work with a "puck" battery operated LED light source. The lamp sits on top of a standard 68mm/2.75" diameter LED puck light that is powered by 3 AAA batteries. I bought 3 of these lights at Lowes for $9.98 batteries included. The photos show the lamp with the light on and off - not much of a difference because it was a sunny day.

Here is a link to the puck light:

http://www.lowes.com/pd_406110-43768-NS511-R6-306_1z0y4gqZ1z10d2u__?productId=4177463&pl=1