CFL Bulbs

CFLs (Compact Fluorescent Lamps) are energy-saving bulbs consisting of a fluorescent tube that has been made into a shape the same size as a traditional incandescent light bulb.

How does a CFL work?

CFL Bulbs contain gases that are given an electric current, generating UV light which then excites the gasses. A phosphorous layer is then produced on the inside which glows, giving off light. There is very little heating involved.

What shape are CFLs?

Compact fluorescent light bulbs come in various shapes, such as:

  • Candle bulbs represent the shape of a flame, with a pointed tip, and are often used in decorative fixtures, especially slimmer designs that can't accommodate a globe or spiral bulb.
  • Globe bulbs are spherical shaped and are often used in vanity mirrors and bathroom pendants. They may take longer to reach full brightness but will become as bright as other CFLs.
  • Spiral bulbs have a fluorescent tube that is shaped into a spiral curve. This is the most common CFL bulb shape, producing the same amount of light as an incandescent bulb.
  • Stick or tube bulbs usually consist of multiple tubes which are straight. Like candle bulbs, they are commonly used in slimmer lighting fixtures.

What colour are CFL bulbs?

CFL light bulbs come in many variations of white. They are most commonly classed as "Cool White" or "Warm White", which describes the colour temperature of the light that the bulb emits. Colour temperature is a measurement of the light output, given in Kelvin (K). The higher the value, the cooler the white. For example, 5000K would be cool white lighting.

CFL Bases:

The base of the bulb depicts what fitting it pairs with. CFL lamps usually have a push and twist bayonet or Edison screw base, both of which are available in various sizes.

Why choose a CFL bulb?

Fluorescent bulbs are designed to be more energy-efficient than incandescent or halogen bulbs. They have a very low energy consumption which also saves money on electricity bills, over time. CFL bulbs have a much longer lifetime too, of up to approximately 10 years. The lifetime of the light bulb will be stated in hours.

What is CFL Equivalent Wattage?

Although CFLs do not use the same technology as incandescent bulbs, they are often given a comparable wattage value, providing an easy comparison to the equivalent wattage.


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Description Price Shape Wattage Lamp Base Length Colour Temperature Incandescent Equivalent Wattage Colour Tone Colour Rendering Colour Reference Diameter Number of loops Luminosity Life Hours EU Energy Efficiency Rating
RS Stock No. 711-7259
Mfr. Part No.25909
BrandSylvania
PHP164.981
Each (In a Pack of 10)
units
Stick 13 W G24d-1 90 mm 3000K - Warm White 82 830 28mm 1 900 lm 10000h A
RS Stock No. 711-7265
Mfr. Part No.25913
BrandSylvania
PHP164.981
Each (In a Pack of 10)
units
Stick 13 W G24d-1 141 mm 4000K - Cool White 82 840 28mm 1 900 lm 10000h A
RS Stock No. 702-5318
Mfr. Part No.13PLC8302PIN
PHP245.70
Each
units
2D 13 W G24d-1 138 mm 3000K 75W Warm White 82 830 27mm 2 900 lm 10000h A
RS Stock No. 792-6791
Mfr. Part No.4050300025698
BrandOsram
PHP253.39
Each
units
Quad Tube 13 W G24d-1 138 mm 3000K - Warm White 89 830 27mm 2 900 lm 10000h A
RS Stock No. 792-6760
Mfr. Part No.4050300342221
BrandOsram
PHP526.52
Each
units
Triple Tube 18 W GX24q 117 mm 4000K - Cool White 89 840 49mm 2 1200 lm 20000h A
RS Stock No. 791-8321
Mfr. Part No.0035012
BrandSylvania
PHP250.24
Each
units
Stick 11 W B22 118.5 mm 2700K 48W - 80 827 42mm - 560 lm 8000h A
RS Stock No. 711-7275
Mfr. Part No.25922
BrandSylvania
PHP164.981
Each (In a Pack of 10)
units
Stick 18 W G24q-2 131 mm 3000K - Warm White 82 830 28mm 1 1200 lm 10000h A
RS Stock No. 711-7281
Mfr. Part No.25926
BrandSylvania
PHP164.981
Each (In a Pack of 10)
units
Stick 18 W G24q-2 131 mm 4000K - Cool White 82 840 28mm 1 1200 lm 10000h A
RS Stock No. 702-5359
Mfr. Part No.18PLT8402PINCS
PHP386.01
Each
units
Six Tube 18 W GX24d-2 119 mm 4000K 100W Cool White 82 840 41mm 3 1200 lm 10000h B
RS Stock No. 711-7287
Mfr. Part No.25925
BrandSylvania
PHP164.981
Each (In a Pack of 10)
units
Stick 13 W G24q-1 118 mm 4000K - Cool White 82 840 28mm 1 900 lm 10000h A
RS Stock No. 702-5330
Mfr. Part No.26PLC8304PIN
PHP460.21
Each
units
2D 26 W G24q-3 164 mm 3000K 150W Warm White 82 830 27mm 2 1800 lm 13000h B
RS Stock No. 702-5321
Mfr. Part No.26PLC8302PIN
PHP245.70
Each
units
2D 26 W G24d-3 171 mm 3000K 150W Warm White 82 830 27mm 2 1800 lm 10000h B
RS Stock No. 792-6836
Mfr. Part No.4050300298917
BrandOsram
PHP438.11
Each
units
Quad Tube 55 W 2G11 533 mm 3000K - Warm White 89 830 18mm 2 4800 lm 20000h A+
RS Stock No. 662-1436
Mfr. Part No.927939383540
PHP417.585
Each (In a Pack of 10)
units
2D 28 W GR10q 207 mm 3500K 28W Warm White 82 835 205mm 1 2050 lm 12000h A
RS Stock No. 791-8324
Mfr. Part No.0035001
BrandSylvania
PHP238.39
Each
units
Stick 9 W E14 110 mm 2700K 38W - 80 827 42mm - 410 lm 8000h A
RS Stock No. 702-5312
Mfr. Part No.18PLC8302PIN
PHP245.70
Each
units
2D 18 W G24d-2 150 mm 3000K 100W Warm White 82 830 27mm 2 1200 lm 10000h B
RS Stock No. 711-7366
Mfr. Part No.24946
BrandSylvania
PHP248.341
Each (In a Pack of 10)
units
2D 16 W GR8 141 mm 3500K - Warm White 82 835 138mm 1 1050 lm 10000h B
RS Stock No. 702-5362
Mfr. Part No.18PLT8304PINCS
PHP602.38
Each
units
Six Tube 18 W GX24q-2 112 mm 3000K 100W Warm White 82 830 41mm 3 1200 lm 13000h B
RS Stock No. 792-6748
Mfr. Part No.4052899912564
BrandOsram
PHP380.48
Each
units
Quad Tube 11 W E27 96 mm 4000K 55W Cool White 80 840 41mm - 660 lm 10000h A
RS Stock No. 827-9239
Mfr. Part No.94521
BrandGE
PHP526.573
Each (In a Pack of 10)
units
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