ElekTek Special Safety Switched lamp Bulb Holder B22 BC Bayonet Shade Ring 7/16th Screw Wood Mount, Antique Brass, Child Safe Push Bar Locks to Cut Power if not Inserted Made in UK

IMPORTANT: Push-Bar Switch will ONLY work when a bulb is fitted - Patented Safety Switch Design B22 (22mm) BC Bayonet Cap Lamp Holder with shade ring, suitable for Incandescent, LED and Halogen bulbs up to 100W - Suitable for lighting circuits only - T2 temperature rating (220°C). Fully approved to BS 7895:1997 (UNSWITCHED B22 wood-mount version available in separate listing) IMPORTANT: This Screw-in Wood Mount is NOT COMPATIBLE for connecting/securing with a nut - the 22mm BC bayonet lamp holder is intended primarily for attachment to a pre-drilled wooden surface and the solid brass wood-screw insert has 1/2" (26TPI) thread at lamp holder end and 7/16" Whitworth (10.86mm external dia.) Wood screw type thread the other Maximum diameter 32mm, Height 74mm with wood mount, 63mm without - 1/2" 26tpi lamp holder threaded entry, reduced to 7mm cable aperture. Internal locking screw mounted in a separate riveted & threaded base ensuring your lighting does not come apart with use (beware of cheaper, pressed type bases that cannot carry a locking screw) - loosen screw, thread onto existing threaded fitting and tighten locking screw before wiring Hand assembled - easy to separate for fitting: simply remove the thin upper shade ring by unscrewing anti-clocwise; hold base with the Push Bar pinched between thumb and index finger and unscrew thicker lower ring by unscrewing anti-clockwise. When re-assembling ENSURE the alignment slots of the upper shell are aligned correctly to the switch insert Made in the UK - Help Support UK Business