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. 711-7278
Mfr. Part No.25915
BrandSylvania
PHP193.32
Each (In a Pack of 10)
units
Stick 26 W G24d-3 171 mm 4000K - Cool White 82 840 28mm 1 1800 lm 12000h A
RS Stock No. 662-1420
Mfr. Part No.927939083540
PHP499.597
Each (In a Pack of 10)
units
2D 16 W GR8 141 mm 3500K 16W Warm White 82 835 138mm 1 1050 lm 10000h B
RS Stock No. 711-7269
Mfr. Part No.25914
BrandSylvania
PHP164.981
Each (In a Pack of 10)
units
Stick 18 W G24d-2 154 mm 4000K - Cool White 82 840 28mm 1 1200 lm 10000h A
RS Stock No. 792-6798
Mfr. Part No.4050300025711
BrandOsram
PHP252.74
Each
units
Quad Tube 26 W G24d-3 172 mm 3000K - Warm White 89 830 27mm 2 1800 lm 10000h A
RS Stock No. 662-1439
Mfr. Part No.927939183540
PHP286.65
Each (In a Pack of 10)
units
2D 16 W GR10q 141 mm 3500K 16W Warm White 82 835 138mm 1 1050 lm 12000h A
RS Stock No. 570-773
Mfr. Part No.26PLC8274PIN
PHP333.32
Each
units
2D 26 W G24q-3 164 mm 2700K 150W Warm White 82 827 27mm 2 1800 lm 13000h A
RS Stock No. 570-600
Mfr. Part No.36PLL840
PHP647.70
Each
units
Twin Tube 36 W 2G11 417 mm 4000K 240W Cool White 82 840 38mm 1 2900 lm 20000h A
RS Stock No. 702-5374
Mfr. Part No.26PLT8304PINCS
PHP460.01
Each
units
Six Tube 26 W GX24q-3 127 mm 3000K 150W Warm White 82 830 41mm 3 1800 lm 13000h B
RS Stock No. 407-5654
Mfr. Part No.10PLC8404PIN
PHP277.07
Each
units
Quad Tube 10 W G24q-1 109 mm 4000K 60W Cool White 82 840 27mm 2 600 lm 13000h A
RS Stock No. 463-5880
Mfr. Part No.DDE262
BrandOsram
PHP343.165
Each (In a Pack of 10)
units
Quad Tube 26 W G24q-3 165 mm 2700K 150W Extra Warm White 80 827 27mm 2 1800 lm 20000h A
RS Stock No. 765-3402
Mfr. Part No.0025889
BrandSylvania
PHP136.564
Each (In a Pack of 10)
units
U Tube 7 W G23 138 mm 4000K - Cool White 82 840 34mm 1 425 lm 10000h A
RS Stock No. 540-482
Mfr. Part No.927939384040
PHP417.585
Each (In a Pack of 10)
units
Quad Tube 28 W GR10q 207 mm 4000K 28W Cool White 82 840 205mm 1 2050 lm 12000h A
RS Stock No. 792-6785
Mfr. Part No.4050300348568
BrandOsram
PHP526.52
Each
units
Triple Tube 32 W GX24q 148 mm 4000K - Cool White 89 840 49mm 2 2400 lm 20000h A
RS Stock No. 702-5337
Mfr. Part No.18PLC8304PIN
PHP254.58
Each
units
2D 18 W G24q-2 143 mm 3000K 100W Warm White 82 830 27mm 2 1200 lm 13000h B
RS Stock No. 820-8801
Mfr. Part No.009316
BrandOrbitec
PHP594.77
Each
units
Oval 9 W B22d 100 mm 4000K 40W - - - 50mm - - - A
RS Stock No. 702-5315
Mfr. Part No.10PLC8302PIN
PHP245.70
Each
units
2D 10 W G24d-1 116 mm 3000K 60W Warm White 82 830 27mm 2 600 lm 10000h B
RS Stock No. 206-8517
Mfr. Part No.4058075408265
BrandLEDVANCE
PHP1,130.66
Each
units
Quad Tube 18 W 2G10 215 mm 4000K - Cool White 80 840 17mm - 2500 lm 30000h -
RS Stock No. 792-6754
Mfr. Part No.4050300333465
BrandOsram
PHP526.52
Each
units
Triple Tube 18 W GX24d 124 mm 4000K - Cool White 89 840 49mm 2 1200 lm 10000h B
RS Stock No. 711-7379
Mfr. Part No.24997
BrandSylvania
PHP315.802
Each (In a Pack of 10)
units
2D 28 W GR10q 207 mm 2700K - Warm White 82 827 205mm 1 2050 lm 10000h A
RS Stock No. 570-739
Mfr. Part No.26PLC8272PIN
PHP271.15
Each
units
2D 26 W G24d-3 171 mm 2700K 150W Warm White 82 827 27mm 2 1800 lm 10000h B