The purpose of the bottom diffuser is to "hide" the socket and light bulb of the fixture when viewed from below. A bottom diffuser is often slightly smaller in size than the bottom dimension of your lampshade.

If you order an optional diffuser with your lampshade, it will be made from an acrylic disc slightly smaller (typically 1/4 inch) than the bottom diameter of the shade, and it will rest securely on the bottom ring. We don't recommend ordering diffusers for softback shades. Diffusers work best on hardback shades, whereby they can rest on the wire frame.

All of our acrylic lampshade diffusers are constructed from 1/8" thick milky-white acrylic. These diffusers do not come with a hole in the center. If you require a hole, please indicate the size of the hole you need in the Product Comment box.

These acrylic materials can also be used as top diffusers in shorter desk, end table, floor, or nightstand lamps.

Custom shapes and sizes available for quote. For assistance with choosing the right diffuser or creating a custom size, contact us, and our team will be happy to help.

ACRYLIC DIFFUSER