Lampshade Buying Guide by Blue Marble Lighting

This is part 3 of a 5 parts series on how to correctly size and purchase lamp shades for table lamps, floor lamps, chandeliers, wall sconces, etc. Be sure to read all of the parts in this series for the most complete information.

Part 1 How Do I Choose the Right Lampshade?
Part 2 How are Lampshades Measured?
Part 3 How Do I Know What Fitter My Lampshade Has?
Part 4 What Shade Should I Buy for my Chandelier or Wall Sconce?
Part 5 Lampshade Glossary of Terms

Part 3 of 5: How Do I Know What Fitter My Lampshade Has?

A fitter is simply the way the shade connects to your lamp. All fitters are integrated in the lampshade so it is very important that you determine the type of fitter that you need for your fixture prior to purchasing your shade. Most lamps require spider fitters. Other common fitters include UNO or clip-on fitters. Check your existing lamp against the diagrams and descriptions below to determine what type of fitter you need.

Clip-On Fitters

Clip on lamp shades are typically for chandeliers. The clip fitter is built into the lamp shade and clips over a standard medium or candelabra base bulb depending on the clip size. *Determine the size bulb the fitter will clip onto prior to purchasing shade.*

  Spider Fitters

If your lamp has a harp, you will need a shade with a spider fitter. The spider fitter sits on top of the harp, is secured by a finial, and is integrated in the lampshade.

Slip UNO Fitters

The UNO fitter is built into the lampshade. The Slip type sits on the socket and is held in place by the bulb.

Threaded UNO Fitters

The UNO fitter is built into the lampshade. The threaded type is typically for down-bridge lamps and features a screw thread for installation above the downward facing bulb.

Reflector Bowl Spider Fitters

These fitters feature grooves in the spider arms for the secure positioning of a reflector bowl. Reflector bowls are not sold as part of the lamp shade. They are usually shipped with the lamp base.