Lamp holder Types
B22 Bayonet Cap Lamp holders (UK) - Adaptor Fitted
E14 Edison Screw Lamp holders (EU) Adaptor Fitted
E27 Edison Screw Lamp holders (EU) Adaptor Removed
E26 Edison Screw Lamp holders (US) Adaptor RemovedNote
There are two standard sizes for Harp systems, 1/4" and 3/8" our Converting Washers will fit them both.
Below is a conversion chart with imperial and metric measurements.
Inches Metric
1/4" 6.35 mm
5/16" 7.95 mm
3/8" 9.53 mm
Our system works with these sizes, but If the Harp stem is bigger, you can make the hole in the washer bigger to fit.
What's in the Package
1 x Lampshade
1 x E27/E26 to B22/E14 Lampshade Reducer / Converter Adapter
1 x Converting Washers - 34mm Diameter with 10mm Inner hole - Nylon