This medium size light can accommodate either a multi-colored LED light kit or an all-white one. Here are links for both kinds of lights:

http://www.amazon.com/gp/product/B00R7F7PNQ?psc=1&redirect=true&ref_=oh_aui_detailpage_o01_s00

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

Here is a short video of the lamp changing colors: https://youtu.be/AtN0jxFw0RI

The lamp in the photo is clear PLA. White is also a good choice for the colored LED, but any color works well with the white LED.