Lamp Holders

Lamp holders, also known as light sockets, are fixtures used in lighting installations. They hold a bulb whilst also providing an electrical connection to it. It is essentially a connection between the wire and the bulb. Some lamp holders also provide support for a pendant or lampshade. You can learn more in our complete lamp holders guide.

Lampholder Applications

  • B15 / B22 (Bayonet) - Bayonet cap (BC) fittings use a two-prong holding mechanism and the code number determines the connection base diameter.
  • E14 / E27 / E40 (Edison Screw) - Edison screw fittings have a threaded connection, with the diameter determined by the base type code.
  • GU4 / GU5.3 / GU10 / GZ10 - Halogen and LED spotlight fittings are a low voltage type with a twist and lock connection.
  • G5 / G13 (Fluorescent tube) - Fluorescent and led strips feature a two-pin fitting at both ends.
  • R7s - Linear Halogen capsules for floodlights and up-lighters have a 7mm R7s cap at each end of a long quartz capsule.
  • G4 / GY6.35 / G9 - Miniature halogen capsule lamps commonly used in integrated fittings and appliances, such as cooker hoods and kitchen cabinet lights.

Lamp holders are also designed for specific light bulb types, for example, LED, GLS or CFL. It is essential that you choose a lamp holder that is compatible with your bulb, and vice versa to ensure a safe installation.

What are Lamp holders made from?

Lamp holders are generally made from plastic, ceramic or metal. This includes brass, porcelain, PC and PBT. Different materials each have their own benefits however the most common reason for these material options is purely aesthetic or cost-based. 

How are bulbs fitted to a lamp holder?

Depending on the bulb and holder type, there are various methods. Most lamp holders fall under either screw-in, snap-fit or push-fit. Some lamp holders are also fitted with a switch to control the power to the bulb directly, rather than a remote switch that needs to be wired externally to the unit.


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Description Price Supported Lamp Type Base Lamp Size Mount Type Material Fixing Method Number of Pins Wattage Thread Size Wiring Points Length Width Wiring Type Current Rating
RS Stock No. 777-7808
BrandRS PRO
£6.11
Each
Units
Halogen R7s - Screw Aluminium Snap-Fit 1 2.5 kW - - 31.9 mm 20.5 mm Push-Wire 10 A
RS Stock No. 777-7814
BrandRS PRO
£3.56
Each (In a Pack of 5)
Units
- B22d B22 Screw Porcelain Snap-Fit 2 - - - 58 mm 43.5 mm - -
RS Stock No. 293-5942
Mfr. Part No.1003E
£3.59
Each
Units
GLS B22 - Screw Brass Snap-Fit - - M10 - 44.7 mm 32 mm - -
RS Stock No. 270-1569
Mfr. Part No.26.290.4012.50
BrandBJB
£9.19
1 Pack of 10
Pack(s)
Fluorescent G13 T8/T12 - PC Snap-Fit 2 660 W - Bottom 28.8 mm 23.6 mm Push-Wire -
RS Stock No. 482-3728
Mfr. Part No.29.311.3700.00
BrandBJB
£17.94
1 Pack of 5
Pack(s)
GLS, HID E27 - Screw Porcelain Screw - - - - 46 mm 44.5 mm - -
RS Stock No. 171-001
Mfr. Part No.25.803.3814.00
BrandBJB
£10.63
Each
Units
Halogen R7s R7 Screw - - - 500 W - - 137 mm 42 mm - -
RS Stock No. 561-943
Mfr. Part No.26.422.1113.50
BrandBJB
£1.034
Each (In a Pack of 10)
Units
Fluorescent G13 T8/T12 - PC Snap-Fit 2 660 W - Bottom 24.8 mm 13 mm Push-Wire -
RS Stock No. 171-045
Mfr. Part No.25.105.3101.00
BrandBJB
£5.024
Each (In a Pack of 5)
Units
Halogen GU5.3 - Clip Ceramic/Mica Plate Screw - - - Rear 22.2 mm 19.3 mm - 10 A
RS Stock No. 220-3065
Mfr. Part No.140035
BrandOrbitec
£11.81
1 Pack of 10
Pack(s)
- E14 E14 Screw Resin Screw - 60 W M10 - - - - -
RS Stock No. 442-2820
Mfr. Part No.26.620.2001.50
BrandBJB
£0.957
Each (In a Pack of 10)
Units
Fluorescent G5 T5 Screw PC Snap-Fit 2 120 W - Bottom 25.3 mm 22 mm Push-Wire -
RS Stock No. 220-3087
Mfr. Part No.140065
BrandOrbitec
£1.588
Each (In a Pack of 10)
Units
- E27 E27 Screw Resin Screw - 60 W M10 - - - - -
RS Stock No. 293-5920
Mfr. Part No.1413E
£6.65
Each
Units
GLS B22 - Screw Brass Snap-Fit - - M10 - 61 mm 32 mm - -
RS Stock No. 668-3305
Mfr. Part No.22.317.3906.50
BrandBJB
£4.332
Each (In a Pack of 5)
Units
GLS E27 E27 Screw Plastic Screw 2 - - - 46 mm 40 mm Push-Wire -
RS Stock No. 668-3291
Mfr. Part No.25.818.2910.00
BrandBJB
£3.69
Each (In a Pack of 5)
Units
Halogen GZ10/GU10 GU10 Screw Ceramic/Mica Plate Screw - 660 W - Rear 16 mm 28 mm - -
RS Stock No. 148-3333
Mfr. Part No.1970691
BrandStucchi
£1.55
Each
Units
- E27 E27 - Thermoplastic - - - - - - - - -
RS Stock No. 561-959
Mfr. Part No.26.308.1125.50
BrandBJB
£1.058
Each (In a Pack of 10)
Units
Fluorescent G13 T8/T12 - PC Snap-Fit 2 660 W - Either Side 33 mm 19.3 mm Push-Wire -
RS Stock No. 171-039
Mfr. Part No.25.104.3521.00
BrandBJB
£18.50
1 Pack of 5
Pack(s)
Halogen - G4 Screw Ceramic/PPS Screw - - - Rear 9 mm 18.6 mm - 10 A
RS Stock No. 668-3294
Mfr. Part No.26.641.2002.50
BrandBJB
£1.243
Each (In a Pack of 10)
Units
Fluorescent G5 T5 - PC Snap-Fit 2 120 W - Bottom 19 mm 9.4 mm Push-Wire -
RS Stock No. 293-5964
Mfr. Part No.1021E
£6.23
Each
Units
GLS B15 - Screw Brass Snap-Fit - - M10 - 38.7 mm 23.2 mm - -
RS Stock No. 171-073
Mfr. Part No.22.318.3909.90
BrandBJB
£3.164
Each (In a Pack of 5)
Units
GLS ES E27 Screw Plastic Screw, Snap-Fit 2 - - - 46 mm 40 mm Push-Wire -