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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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. 780-6230
Fabrikantnummer41298
FabrikantGE
5,325 €
Each (In a Pack of 25)
Aantal stuks
Stick 55 W 2G11 539 mm 4000K - Cool White 82 840 44mm - 4800 lm 22500h A
RS-stocknr. 702-5419
Fabrikantnummer28PLQ8274PIN
FabrikantPhilips Lighting
12,783 €
Each (In a Pack of 10)
Aantal stuks
2D 28 W GR10q 207 mm 2700K 28W Warm White 82 827 205mm 1 2050 lm 12000h B
RS-stocknr. 792-6833
Fabrikantnummer4050300299051
FabrikantOsram
17,00 €
Each
Aantal stuks
Quad Tube 36 W 2G10 217 mm 3000K - Warm White 89 830 18mm 2 2800 lm 10000h A
RS-stocknr. 204-4267
Fabrikantnummer927936684011
FabrikantPhilips Lighting
3,22 €
Each
Aantal stuks
Twin Tube 11 W 2G7 220 mm 4100K - Cool White 82 840 - - 900 lm 13000h -
RS-stocknr. 204-4272
Fabrikantnummer927909584070
FabrikantPhilips Lighting
6,92 €
Each
Aantal stuks
Twin Tube 80 W 2G11 572 mm 4000K - Cool White 82 840 - - 6000 lm 20000h -
RS-stocknr. 472-7692
FabrikantnummerDDE134
FabrikantOsram
3,978 €
Each (In a Pack of 10)
Aantal stuks
Quad Tube 13 W G24q-1 131 mm 4000K 75W Cool White 80 840 27mm 2 900 lm 20000h A
RS-stocknr. 662-1439
Fabrikantnummer927939183540
FabrikantPhilips Lighting
8,783 €
Each (In a Pack of 10)
Aantal stuks
2D 16 W GR10q 141 mm 3500K 16W Warm White 82 835 138mm 1 1050 lm 12000h A
RS-stocknr. 765-3402
Fabrikantnummer0025889
FabrikantSylvania
2,912 €
Each (In a Pack of 10)
Aantal stuks
U Tube 7 W G23 138 mm 4000K - Cool White 82 840 34mm 1 425 lm 10000h A
RS-stocknr. 570-767
Fabrikantnummer18PLC8274PIN
FabrikantPhilips Lighting
6,40 €
Each
Aantal stuks
2D 18 W G24q-2 143 mm 2700K 100W Warm White 82 827 27mm 2 1200 lm 13000h A
RS-stocknr. 711-7209
Fabrikantnummer25004
FabrikantSylvania
13,071 €
Each (In a Pack of 10)
Aantal stuks
2D 38 W GR10q 207 mm 4000K - Cool White 82 840 205mm 1 2850 lm 10000h A
RS-stocknr. 662-1420
Fabrikantnummer927939083540
FabrikantPhilips Lighting
8,783 €
Each (In a Pack of 10)
Aantal stuks
2D 16 W GR8 141 mm 3500K 16W Warm White 82 835 138mm 1 1050 lm 10000h B
RS-stocknr. 792-6766
Fabrikantnummer4050300342245
FabrikantOsram
8,20 €
Each
Aantal stuks
Triple Tube 18 W GX24q 117 mm 3000K - Warm White 89 830 49mm 2 1200 lm 20000h A
RS-stocknr. 711-7275
Fabrikantnummer25922
FabrikantSylvania
5,598 €
Each (In a Pack of 10)
Aantal stuks
Stick 18 W G24q-2 131 mm 3000K - Warm White 82 830 28mm 1 1200 lm 10000h A
RS-stocknr. 702-5362
Fabrikantnummer18PLT8304PINCS
FabrikantPhilips Lighting
9,93 €
Each
Aantal stuks
Six Tube 18 W GX24q-2 112 mm 3000K 100W Warm White 82 830 41mm 3 1200 lm 13000h B
RS-stocknr. 792-6801
Fabrikantnummer4050300327211
FabrikantOsram
4,01 €
Each
Aantal stuks
Quad Tube 18 W G24q-2 146 mm 3000K - Warm White 89 830 27mm 2 1200 lm 20000h A
RS-stocknr. 570-739
Fabrikantnummer26PLC8272PIN
FabrikantPhilips Lighting
6,40 €
Each
Aantal stuks
2D 26 W G24d-3 171 mm 2700K 150W Warm White 82 827 27mm 2 1800 lm 10000h B
RS-stocknr. 780-6240
Fabrikantnummer41171
FabrikantGE
5,933 €
Each (In a Pack of 25)
Aantal stuks
Stick 40 W 2G11 539 mm 3000K - Warm White 82 830 44mm - 3500 lm 22500h A
RS-stocknr. 570-751
Fabrikantnummer13PLC8274PIN
FabrikantPhilips Lighting
6,04 €
Each
Aantal stuks
2D 13 W G24q-1 131 mm 2700K 75W Warm White 82 827 27mm 2 900 lm 13000h A
RS-stocknr. 702-5396
Fabrikantnummer16PLQ8272PIN
FabrikantPhilips Lighting
10,466 €
Each (In a Pack of 10)
Aantal stuks
2D 16 W GR8 141 mm 2700K 16W Warm White 82 827 138mm 1 1050 lm 10000h B
RS-stocknr. 702-5321
Fabrikantnummer26PLC8302PIN
FabrikantPhilips Lighting
6,04 €
Each
Aantal stuks
2D 26 W G24d-3 171 mm 3000K 150W Warm White 82 830 27mm 2 1800 lm 10000h B