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. 407-5597
Fabrikantnummer9PLS8402PINB
FabrikantPhilips Lighting
6,20 €
Each
Aantal stuks
Twin Tube 9 W G23 167 mm 4000K 60W Cool White 82 840 28mm 1 600 lm 10000h A
RS-stocknr. 702-5337
Fabrikantnummer18PLC8304PIN
FabrikantPhilips Lighting
6,09 €
Each
Aantal stuks
2D 18 W G24q-2 143 mm 3000K 100W Warm White 82 830 27mm 2 1200 lm 13000h B
RS-stocknr. 792-6849
Fabrikantnummer4050300816838
FabrikantOsram
7,58 €
Each
Aantal stuks
Twin Tube 16 W GR8 141 mm 3500K - Warm White 89 835 138mm 4 1050 lm 10000h B
RS-stocknr. 792-6839
Fabrikantnummer4050300295879
FabrikantOsram
6,76 €
Each
Aantal stuks
Quad Tube 55 W 2G11 535 mm 4000K - Cool White 89 840 18mm 2 4800 lm 20000h A+
RS-stocknr. 407-5648
Fabrikantnummer26PLC8402PIN
FabrikantPhilips Lighting
6,52 €
Each
Aantal stuks
Quad Tube 26 W G24d-3 171 mm 4000K 150W Cool White 82 840 27mm 2 1800 lm 10000h B
RS-stocknr. 463-6164
Fabrikantnummer4050300011462
FabrikantOsram
3,90 €
Each (In a Pack of 10)
Aantal stuks
Quad Tube 18 W G24d-2 153 mm 2700K 100W Extra Warm White 80 827 27mm 2 1200 lm 10000h B
RS-stocknr. 702-5312
Fabrikantnummer18PLC8302PIN
FabrikantPhilips Lighting
6,40 €
Each
Aantal stuks
2D 18 W G24d-2 150 mm 3000K 100W Warm White 82 830 27mm 2 1200 lm 10000h B
RS-stocknr. 792-6794
Fabrikantnummer4050300025704
FabrikantOsram
4,01 €
Each
Aantal stuks
Quad Tube 18 W G24d-2 153 mm 3000K - Warm White 89 830 27mm 2 1200 lm 10000h B
RS-stocknr. 702-5315
Fabrikantnummer10PLC8302PIN
FabrikantPhilips Lighting
6,04 €
Each
Aantal stuks
2D 10 W G24d-1 116 mm 3000K 60W Warm White 82 830 27mm 2 600 lm 10000h B
RS-stocknr. 702-5371
Fabrikantnummer18PLT8404PINCS
FabrikantPhilips Lighting
11,24 €
Each
Aantal stuks
Six Tube 18 W GX24q-2 112 mm 4000K 100W Cool White 82 840 41mm 3 1200 lm 13000h B
RS-stocknr. 669-2942
Fabrikantnummer4050300017655
FabrikantOsram
4,67 €
Each
Aantal stuks
Twin Tube 9 W 2G7 150 mm 2700K 60W Extra Warm White 80 827 27mm 1 600 lm 20000h 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. 711-7360
Fabrikantnummer24989
FabrikantSylvania
9,332 €
Each (In a Pack of 10)
Aantal stuks
2D 16 W GR10q 141 mm 2700K - Warm White 82 827 138mm 1 1050 lm 10000h A
RS-stocknr. 212-2455
Fabrikantnummer92246
FabrikantGE
46,19 €
Each
Aantal stuks
Genura 23 W E27 130 mm 3000K 100W Warm White 82 830 - - 1100 lm 15000h B
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. 204-4268
Fabrikantnummer927914983071
FabrikantPhilips Lighting
11,89 €
Each
Aantal stuks
Six Tube 57 W GX24Q-5 197.7 mm 3000K - Warm White 80 830 - - 4300 lm 13000h -
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. 702-5318
Fabrikantnummer13PLC8302PIN
FabrikantPhilips Lighting
6,40 €
Each
Aantal stuks
2D 13 W G24d-1 138 mm 3000K 75W Warm White 82 830 27mm 2 900 lm 10000h 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. 791-8324
Fabrikantnummer0035001
FabrikantSylvania
3,74 €
Each
Aantal stuks
Stick 9 W E14 110 mm 2700K 38W - 80 827 42mm - 410 lm 8000h A