Small Bayonet Cap (SBC) [B15]. The regulations vary from country to country.
Brass B15, SBC, Small Bayonet Batten Lamp Bulb Holder, Shade Ring Table Light
ElekTek B15 SBC Nickel Plated Brass Fixed Batten Miniature Lamp Bulb Holder Shade Ring - NOT SUITABLE for B22 Lamp/Light Bulbs - Made in UK
Morotty B15 Candle Bulbs Dimmable Warm White 2700K, 360LM, AC 230V, B15 SBC C35 Candle Bulbs Small Bayonet Cap, Light Bulb for Chandelier, Wall Lights, Ceiling Lights, 10 Pack
TWDRTDD E27 to B15 Lamp Light Bulb Socket Base Adapter Converter Edison Screw B15 SBC Small Bayonet (E27-B15D,1-PACK)
Pack of 3 CFL 9W (40 Watt Equivalent), Spiral Shape Compact Flourescent Bulbs, B15 SBC Small Bayonet Cap Fitting, Energy Saving, Warm White 2700K, 10 Year Long-Lasting, No Flicker, 480 Lumen
4 x 15W EVEREADY PYGMY BULB WARM WHITE B15 SBC 15 Watt 60 LUMENS SMALL BAYONET
