CFL Bulbs

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

How does a CFL work?

CFL Bulbs contain gases which 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 which 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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Omschrijving Prijs 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-stocknr. 829-3483
FabrikantRS PRO
11,88 €
Each
Aantal stuks
U Tube 13 W - - - - - - - - - - - B
RS-stocknr. 792-6814
Fabrikantnummer4050300025742
FabrikantOsram
3,67 €
Each
Aantal stuks
Quad Tube 9 W G23 167 mm 3000K - Warm White 89 830 27mm 2 600 lm 10000h A
RS-stocknr. 711-7196
Fabrikantnummer25000
FabrikantSylvania
11,193 €
Each (In a Pack of 10)
Aantal stuks
2D 28 W GR10q 207 mm 4000K - Cool White 82 840 205mm 1 2050 lm 10000h A
RS-stocknr. 792-6823
Fabrikantnummer4050300010793
FabrikantOsram
6,53 €
Each
Aantal stuks
Quad Tube 36 W 2G11 411 mm 3000K - Warm White 89 830 17.5mm 2 2900 lm 20000h A
RS-stocknr. 792-6798
Fabrikantnummer4050300025711
FabrikantOsram
2,98 €
Each
Aantal stuks
Quad Tube 26 W G24d-3 172 mm 3000K - Warm White 89 830 27mm 2 1800 lm 10000h A
RS-stocknr. 711-7287
Fabrikantnummer25925
FabrikantSylvania
5,598 €
Each (In a Pack of 10)
Aantal stuks
Stick 13 W G24q-1 118 mm 4000K - Cool White 82 840 28mm 1 900 lm 10000h A
RS-stocknr. 792-6817
Fabrikantnummer4050300025759
FabrikantOsram
3,67 €
Each
Aantal stuks
Quad Tube 11 W G23 237 mm 3000K - Warm White 89 830 27mm 2 900 lm 10000h A
RS-stocknr. 702-5422
Fabrikantnummer38PLQ8404PIN
FabrikantPhilips Lighting
13,739 €
Each (In a Pack of 10)
Aantal stuks
2D 38 W GR10q 207 mm 4000K 38W Cool White 82 840 205mm 1 2850 lm 12000h B
RS-stocknr. 570-688
Fabrikantnummer9PLS8274PINB
FabrikantPhilips Lighting
5,91 €
Each
Aantal stuks
Twin Tube 9 W 2G7 151 mm 2700K 60W Warm White 82 827 28mm 1 600 lm 13000h A
RS-stocknr. 662-1436
Fabrikantnummer927939383540
FabrikantPhilips Lighting
12,783 €
Each (In a Pack of 10)
Aantal stuks
2D 28 W GR10q 207 mm 3500K 28W Warm White 82 835 205mm 1 2050 lm 12000h A
RS-stocknr. 792-6763
Fabrikantnummer4050300342047
FabrikantOsram
8,20 €
Each
Aantal stuks
Triple Tube 26 W GX24d 139 mm 4000K - Cool White 89 840 49mm 2 1800 lm 10000h A
RS-stocknr. 233-544
FabrikantnummerF9BX/827
FabrikantGE
3,333 €
Each (In a Pack of 10)
Aantal stuks
Twin Tube 9 W G23 167 mm 2700K 60W Warm White 82 827 27mm 1 600 lm 10000h A
RS-stocknr. 472-7995
FabrikantnummerDD2684
FabrikantOsram
3,90 €
Each (In a Pack of 10)
Aantal stuks
Quad Tube 26 W G24d-3 172 mm 4000K 150W Cool White 80 840 27mm 2 1800 lm 10000h A
RS-stocknr. 463-5903
FabrikantnummerDL2484
FabrikantOsram
5,767 €
Each (In a Pack of 10)
Aantal stuks
Twin Tube 24 W 2G11 320 mm 4000K 150W Cool White 80 840 38mm 1 1800 lm 10000h A
RS-stocknr. 407-5676
Fabrikantnummer18PLC8404PIN
FabrikantPhilips Lighting
6,22 €
Each
Aantal stuks
Quad Tube 18 W G24q-2 143 mm 4000K 100W Cool White 82 840 27mm 2 1200 lm 13000h A
RS-stocknr. 407-5632
Fabrikantnummer18PLC8402PIN
FabrikantPhilips Lighting
6,22 €
Each
Aantal stuks
Quad Tube 18 W G24d-2 150 mm 4000K 100W Cool White 82 840 27mm 2 1200 lm 10000h B
RS-stocknr. 472-7973
Fabrikantnummer010625
FabrikantOsram
3,90 €
Each (In a Pack of 10)
Aantal stuks
Quad Tube 13 W G24d-1 138 mm 4000K 75W Cool White 80 840 27mm 2 900 lm 10000h A
RS-stocknr. 463-5880
FabrikantnummerDDE262
FabrikantOsram
3,90 €
Each (In a Pack of 10)
Aantal stuks
Quad Tube 26 W G24q-3 165 mm 2700K 150W Extra Warm White 80 827 27mm 2 1800 lm 20000h A
RS-stocknr. 669-2939
Fabrikantnummer4050300006017
FabrikantOsram
4,73 €
Each
Aantal stuks
Twin Tube 11 W G23 237 mm 2700K 60W Extra Warm White 80 827 27mm 1 900 lm 5000h A
RS-stocknr. 792-6827
Fabrikantnummer4050300279909
FabrikantOsram
6,63 €
Each
Aantal stuks
Quad Tube 40 W 2G11 533 mm 4000K - Cool White 89 840 18mm 2 3500 lm 20000h A+