E27 or B22 Lamp Holder to Harp Finial Converter – ShadeCore ® Our premium ShadeCore® converter system allows a standard lampshade frame with an E27 Edison Screw utility fitting or UNO fitter with a centre-hole diameter of approximately 40 mm to be used with B22 Bayonet Cap, E14 Edison Screw, or compatible harp and finial systems. ✔ Manufactured for Makers ✔ Trusted by Professionals ✔ Compatible with UK, EU Fittings It is an ideal solution when the fitting on a lampshade does not match the lamp holder on your table lamp, floor lamp or ceiling light. Instead of replacing the lampshade or altering its frame, the adapter reduces the size of the centre aperture to create a secure and suitable fit. The system is especially useful for using European-style E27 lampshades with common UK B22 lamp holders, adapting a favourite shade to a different lamp base, or giving restored and handmade lampshades greater versatility. You can rely on ShadeCore® lampshade frames for strength, accuracy, and professional results every time. About ShadeCore ® It is our brand of lampshade ring sets and frames, made for makers who demand quality, consistent sizing, and professional performance. Trusted by manufacturers and makers worldwide, our frames serve as the foundation for products in quality retailers, interior design, and commercial lighting projects. ShadeCore® delivers dependable performance every time. How do I use a Converter? Squeeze the Adapter and install into the centre of the lampshade frame to reduce the aperture. Insert a Converting Washer onto the stem of the Harp System. Place your Lampshade onto the thread of the Harp System, ensuring the washer fits into the ridge of the Adapter. Place the other Converting Washer on top of the Adapter, fit into the ridge, and then screw on your Finial. Your lampshade can now be used with Harp Systems What’s Included 1 x E27/E26 to B22/E14 Lampshade Reducer / Converter Adapter 2 x Converting Washers - 34mm Diameter with 10mm Inner hole - Nylon Duplex Converter Compatibility The system includes a fitted reducer/converter adapter for UK lamp holders. This allows the system to work with multiple common fitting types used in lampshade making. E27 Edison Screw (EU) – adaptor provided E26 Edison Screw (US) – adaptor provided For use with USA harp & finial fittings , converting washers can be added with the supplied adaptor system. These are available separately. Learn more about the converter / adaptor system Key Features and Benefits Precision-made converter system for professional lampshade production Strong nylon construction This system will convert a standard lampshade frame that has an E27 Edison Screw Utility Fitting or UNO Lamp Fitter Compatible with UK, European, and selected US fittings Specifications Product Type Converter System Brand ShadeCore® Material Mild steel wire Wire Thickness 4mm Finish White epoxy coated UNO Fitting Aperture 40mm Important Notes 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. Conversion Chart Inches Metric 1/4" 6.35mm 5/16" 7.95mm 3/8" 9.53mm Our system works with these sizes, but If the Harp stem is bigger, you can make the hole in the washer bigger to fit. About the Manufacturer Trusted worldwide by professional makers, workshops, manufacturers, specifiers and interior designers, Dannells offers a comprehensive range of products backed by decades of industry experience. We supply high-quality materials and support makers at every stage, from initial projects through to large-scale production. Our team provides expert technical advice and product guidance to help ensure consistent, reliable and professional results. Dannells are committed to quality, reliability and dependable service, ensuring every order meets professional standards and production workflows. We value all our customers and support their projects at every step. Support & Community At Dannells, we support customers at every level, from first-time makers to professional manufacturers. We’re always happy to offer friendly advice, technical guidance, and practical help whenever you need it. We also provide a wide range of online tutorials and videos to help you get the most from our products and tackle common lampshade-making challenges. If you have a question, need help with a problem, or just want some reassurance before starting a project, give us a call or send us an email. Our team will always do their best to help in any way they can. Our YouTube tutorial library is full of practical tips, techniques, and solutions to help you build confidence and improve your lampshade-making skills. The secret every lampshade maker should know is to join the Dannells Lampshade Makers Forum. This creative community of over 7,500 makers worldwide shares ideas, s
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