Halogen Bulbs

A halogen bulb is an electric light that falls into the family of incandescent lamps. Incandescent light bulbs typically made up of an airtight enclosure (usually heat resistant glass) containing a tungsten filament and a mixture of inert and halogen gasses.


How do halogens work?


When an electrical current flows through the tungsten filament in a bulb, it burns so hotly that it glows white producing light. Now ordinarily, if this process was conducted outside of the air-tight enclosure, exposed to oxygen the filament would burn out before it got to that temperature. Halogen bulbs work purely because the mixture of gasses inside the glass protects the filament preventing it from burning out quickly.


As the traditional GLS incandescent bulbs are being phased out, halogen light bulbs are the closest equivalent available that produces a similar light output. Although halogen bulbs use 20-30% less energy than their incandescent counterparts, they are still considered the least energy efficient bulb compared similar bulbs.


Advantages


As we mentioned before halogen bulbs are the least energy efficient of the energy saving bulbs. Despite this, they still have some advantages.


  • Halogen bulbs are the cheapest, but not the most energy efficient energy saving bulb.

  • Halogens reach full brightness as soon as they are switched on. No waiting for warming up as you would with some compact fluorescents.

  • Halogen bulbs are dimmable if used with suitable switches, unlike some LED and CFL lighting.

  • Halogen bulbs generally have a high CRI (colour rendering Index) score. Making them the ideal for colour critical applications.

Disadvantages


Even though halogen lamps are good for some applications, there are some downsides.


  • Care must be taken when changing or handling halogen bulbs. If any grease or grime from fingertips makes contact with the glass it can leave a residue. The deposits can cause uneven heating while the bulb is in use, shortening the life expectancy.

  • Halogen bulbs have a much shorter life expectancy compared to other energy saving bulbs. In typical conditions, the life expectancy of a halogen would be around 2,000 hours. With LED bulbs you would expect to see 25,000 hours and CFL’s around 10,000.

  • Higher wattages being phased out.

Types


Halogen lamps come in a variety of bases in both Bayonet cap and Edison screw. Ranging from BA15 to B22 for Bayonets and SES to E27 for screw types. Lamps are also available in different wattages, shapes, and luminosities.


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Description Price Wattage Lamp Shape Lamp Base Lamp Finish Voltage Rating Incandescent Equivalent Wattage Life Hours Length Diameter Current Rating EU Energy Efficiency Rating Luminosity Series
RS Stock No. 817-9220
BrandRS PRO
MYR10.705
Each (In a Pack of 2)
units
20 W - BA15s - 12 V - - 305 mm - - - - -
RS Stock No. 233-673
Mfr. Part No.15P1/CL/SES
BrandGE
MYR6.529
Each (In a Pack of 10)
units
15 W Pygmy SES / E14 Clear 240 V - 1000h 60 mm 28mm - E - -
RS Stock No. 149-215
Mfr. Part No.620206
BrandOsram
MYR43.69
Each
units
20 W Bulb GU5.3 - 12 V - 4000h 46 mm 51mm - B - -
RS Stock No. 149-209
Mfr. Part No.516639
BrandOsram
MYR48.80
Each
units
35 W Bulb GU5.3 - 12 V - 4000h 46 mm 51mm - B - -
RS Stock No. 901-3222
Mfr. Part No.70BCECOCLASA55
BrandPhilips
MYR9.585
Each (In a Pack of 15)
units
70 W Bulb BC / B22d Clear 240 V 92W 2000h 95.5 mm 56mm 290 mA - 1200 lm -
RS Stock No. 765-4553
Mfr. Part No.64542PPROB22D
BrandOsram
MYR26.54
Each
units
30 W Candle BC / B22d Clear 240 V 40W 2000h 72.5 mm 45mm - D - HALOGEN PRO CLASSIC
RS Stock No. 901-3204
Mfr. Part No.28BCECOCLASA55
BrandPhilips
MYR8.235
Each (In a Pack of 15)
units
28 W Bulb BC / B22d Clear 240 V 35W 2000h 95.5 mm 56mm 120 mA - 370 lm -
RS Stock No. 820-8814
Mfr. Part No.143102
BrandOrbitec
MYR21.69
Each
units
40 W Bulb SES / E14 - 230 V - - 82 mm 45mm - - - -
RS Stock No. 789-9706
Mfr. Part No.0023114
BrandSylvania
MYR13.03
Each
units
42 W Globe BC / B22d Clear 240 V 53W 2000h 72.5 mm 46mm - D - -
RS Stock No. 765-4581
Mfr. Part No.64547APROB22D
BrandOsram
MYR20.51
Each
units
77 W Bulb BC / B22d Clear 240 V 100W 2000h 93 mm 55mm - D 1320 lm HALOGEN PRO CLASSIC
RS Stock No. 789-8107
Mfr. Part No.98365
BrandGE
MYR7.775
Each (In a Pack of 2)
units
30 W Bulb ES / E27 Clear 240 V 40W 2000h 89.5 mm 50mm - D - -
RS Stock No. 711-7174
Mfr. Part No.23138
BrandSylvania
MYR11.562
Each (In a Pack of 10)
units
70 W GLS ES / E27 Clear 240 V 92W 2000h 100 mm 55.8mm - D - -
RS Stock No. 820-8805
Mfr. Part No.143101
BrandOrbitec
MYR23.17
Each
units
60 W Bulb ES / E27 - 230 V - - 102 mm 55mm - - - -
RS Stock No. 765-4538
Mfr. Part No.64542APROB22D
BrandOsram
MYR20.51
Each
units
30 W Bulb BC / B22d Clear 240 V 40W 2000h 93 mm 55mm - D 405 lm HALOGEN PRO CLASSIC
RS Stock No. 765-4572
Mfr. Part No.64543PES
BrandOsram
MYR26.63
Each
units
46 W Bulb SES / E14 - - - 2000h 80 mm 45mm - D - HALOGEN PRO CLASSIC
RS Stock No. 149-344
Mfr. Part No.516714
BrandOsram
MYR43.69
Each
units
50 W Bulb GU5.3 - 12 V - 4000h 46 mm 51mm - B - -
RS Stock No. 789-9696
Mfr. Part No.0023488
BrandSylvania
MYR11.75
Each
units
28 W Globe BC / B22d Clear 240 V 35W 2000h 72.5 mm 46mm - D - -
RS Stock No. 791-6589
Mfr. Part No.4008321754950
BrandOsram
MYR13.88
Each
units
46 W Candle ES / E27 - 240 V - 2000h 74 mm 45mm - D - HALOGEN PRO CLASSIC
RS Stock No. 756-8976
Mfr. Part No.23767
BrandSylvania
MYR11.226
Each (In a Pack of 10)
units
42 W Bulb ES / E27 - 240 V 55W 2000 97 mm 55mm - D - -
RS Stock No. 820-8817
Mfr. Part No.143103
BrandOrbitec
MYR21.69
Each
units
40 W Bulb ES / E27 - 230 V - - 82 mm 45mm - - - -
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