BC Switched Bulb Holder with 12mm Hole
This high-quality **BC (Bayonet Cap)** switched bulb holder features a **12 mm top entry hole** and integrated on/off switch, making it a tidy solution for pendant lights, table lamps and bespoke lighting builds where simple control and a clean finish matter.
Machined from durable brass in the UK and supplied complete with shade ring compatible with 28–30 mm fitter holes, this component delivers reliability and flexibility for repair, upgrade or custom installation tasks.
Product Specifications
| Holder type | BC / B22 (Bayonet Cap) |
|---|---|
| Opening / entry | 12 mm female hole |
| Control | Integrated on/off switch |
| Shade compatibility | Shade ring included (fits 28–30 mm fitter hole) |
Sizes & Dimensions
| Dimension | Measurement |
|---|---|
| Overall height | 43 mm |
| Maximum diameter | 34 mm |
While most orders are dispatched on a next-day service, delivery can take up to 3–5 working days.
| Dimensions | |
| Holder Type | BC (Bayonet Cap) |
| Opening | 12mm |
| Size Guide | |
| Height | 43mm |
| Diameter | 34mm |
BC Switched Bulb Holder with 12mm Hole in Brass
- Product Code: 285915
- Availability: 50
-
£8.60
Tags: BC switched bulb holder, BC lamp holder with switch, bayonet cap switched socket, lighting components UK, pendant light parts, ceiling light bulb holder, John Moncrieff Ltd, DIY lighting supplies, quality lamp socket


