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    Light Bulb Cap & Base Examples

    Use our cap/base type identifier to help search for your required bulb.

    Most Common Compact Fluorescent Edison Screw Fluorescent Tubes Architectual Halogen Bayonet Cap Metal Halide Specialist Infra Red

    Most Common

    This is a GU10 light bulb cap base
    GU10

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    This is a GX5.3/GU5.3 light bulb cap base
    GX5.3

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    This is a MES/E10 light bulb cap base
    E10 10mm Ø

    View light bulbs with a MES/E10 lamp base
    This is a 14mm E14/SES light bulb cap base
    SES 14mm Ø

    View light bulbs with a 14mm E14/SES lamp base
    This is a 26-27mm ES/E27 light bulb cap base
    ES 27mm Ø

    View light bulbs with a 26-27mm ES/E27 lamp base
    This is a 22mm Ba22d/BC light bulb cap base
    BC 22mm Ø

    View light bulbs with a 22mm Ba22d/BC lamp base
    This is a 15mm Ba15d/SBC light bulb cap base
    SBC 15mm Ø

    View light bulbs with a 15mm Ba15d/SBC lamp base
    This is a G4 (4mm Apart) light bulb cap base
    G4 (4mm)

    View light bulbs with a G4 (4mm Apart) lamp base
    This is a G6.35/GY6.35 (6.35mm Apart) light bulb cap base
    G6.35 (6.35mm)

    View light bulbs with a G6.35/GY6.35 (6.35mm Apart) lamp base
    This is a G9 (9mm Apart) light bulb cap base
    G9 (9mm)

    View light bulbs with a G9 (9mm Apart) lamp base
    This is a R7s/RX7s light bulb cap base
    R7s

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    This is a G5 (T4) light bulb cap base
    T4 (12mm Dia)

    View light bulbs with a G5 (T4) lamp base
    This is a G5 light bulb cap base
    T5 (15mm Dia)

    View light bulbs with a G5 lamp base
    This is a G13 light bulb cap base
    T8 (25mm Dia)

    View light bulbs with a G13 lamp base
    This is a Single Pin light bulb cap base
    Monopin

    View light bulbs with a Single Pin lamp base
    This is a GX53 light bulb cap base
    GX53

    View light bulbs with a GX53 lamp base
    This is a GR8 light bulb cap base
    GR8 - 2 Pin

    View light bulbs with a GR8 lamp base
    This is a GR10q light bulb cap base
    GR10q - 4 Pin

    View light bulbs with a GR10q lamp base
    This is a G10q light bulb cap base
    G10q - 4 Pin

    View light bulbs with a G10q lamp base
    This is a 2GX13 light bulb cap base
    2GX13

    View light bulbs with a 2GX13 lamp base
    This is a 2G7 light bulb cap base
    2G7

    View light bulbs with a 2G7 lamp base
    This is a 2G11 light bulb cap base
    2G11

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    This is a GX10Q light bulb cap base
    GX10q

    View light bulbs with a GX10Q lamp base
    This is a GX53 light bulb cap base
    GX53

    View light bulbs with a GX53 lamp base
    This is a S14s double light bulb cap base
    S14s Double

    View light bulbs with a S14s double lamp base
    This is a S14d single light bulb cap base
    S14d

    View light bulbs with a S14d single lamp base
    This is a G12 light bulb cap base
    G12

    View light bulbs with a G12 lamp base
    This is a S15 light bulb cap base
    S15

    View light bulbs with a S15 lamp base
    This is a Festoon Base light bulb cap base
    Festoon

    View light bulbs with a Festoon Base lamp base
    This is a T-Click light bulb cap base
    T-Click

    View light bulbs with a T-Click lamp base
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    Google Customer Reviews

    Let Church
    11th September 2025

    easy to order

    Colin Williams
    10th September 2025

    I have electrical light fittings and the only bulbs that fit are difficult to find. I found the company BLT online and it looked as they stocked something that would suit. I sent them an enquiry and was delighted to receive a prompt reply in less than 24hrs. I have ordered a box of light bulbs and trust the information supplied is correct.

    This images encourages customers to subscribe to the BLT newsletter for discounts and special offers