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庫存編號 789-8107
製造零件編號98365
BrandGE
HK$19.045
/個 (每包:2個)
單位
30 W Bulb ES / E27 Clear 240 V 40W 2000h 89.5 mm 50mm - D - -
RS庫存編號 820-8814
製造零件編號143102
BrandOrbitec
HK$42.24
單位
40 W Bulb SES / E14 - 230 V - - 82 mm 45mm - - - -
RS庫存編號 765-4538
製造零件編號64542APROB22D
BrandOsram
HK$33.07
單位
30 W Bulb BC / B22d Clear 240 V 40W 2000h 93 mm 55mm - D 405 lm HALOGEN PRO CLASSIC
RS庫存編號 729-9092
製造零件編號100Q/DC (ETD) 120V (HK)
BrandOsram
HK$2,053.68
單位
- - - - 120 V - - - - - - - -
RS庫存編號 820-8817
製造零件編號143103
BrandOrbitec
HK$42.49
單位
40 W Bulb ES / E27 - 230 V - - 82 mm 45mm - - - -
RS庫存編號 901-3232
製造零件編號42ESECOCLASP45
BrandPhilips
HK$16.969
/個 (每包:15個)
單位
42 W Bulb ES / E27 Clear 240 V 55W 2000h 74 mm 46mm 180 mA - 630 lm -
RS庫存編號 756-8976
製造零件編號23767
BrandSylvania
HK$188.69
1 包 10 套
Pack(s)
42 W Bulb ES / E27 - 240 V 55W 2000 97 mm 55mm - D - -
RS庫存編號 233-673
製造零件編號15P1/CL/SES
BrandGE
HK$10.081
/個 (每包:10個)
單位
15 W Pygmy SES / E14 Clear 240 V - 1000h 60 mm 28mm - E - -
RS庫存編號 765-4572
製造零件編號64543PES
BrandOsram
HK$30.51
單位
46 W Bulb SES / E14 - - - 2000h 80 mm 45mm - D - HALOGEN PRO CLASSIC
RS庫存編號 817-9220
BrandRS PRO
HK$19.30
/個 (每包:2個)
單位
20 W - BA15s - 12 V - - 305 mm - - - - -
RS庫存編號 811-8613
製造零件編號0023480
BrandSylvania
HK$13.70
/個 (每包:10個)
單位
28 W GLS BC / B22d Clear 240 V 37W 2000h 98.5 mm 56mm - D - -
RS庫存編號 820-8805
製造零件編號143101
BrandOrbitec
HK$45.30
單位
60 W Bulb ES / E27 - 230 V - - 102 mm 55mm - - - -
RS庫存編號 803-4042
製造零件編號98377
BrandGE
HK$19.295
/個 (每包:12個)
單位
30 W Globe ES / E27 Clear 240 V 40W 2000h 78 mm 45mm - D - -
RS庫存編號 765-4581
製造零件編號64547APROB22D
BrandOsram
HK$33.07
單位
77 W Bulb BC / B22d Clear 240 V 100W 2000h 93 mm 55mm - D 1320 lm HALOGEN PRO CLASSIC
RS庫存編號 765-4553
製造零件編號64542PPROB22D
BrandOsram
HK$35.89
單位
30 W Candle BC / B22d Clear 240 V 40W 2000h 72.5 mm 45mm - D - HALOGEN PRO CLASSIC
RS庫存編號 901-3222
製造零件編號70BCECOCLASA55
BrandPhilips
HK$18.768
/個 (每包:15個)
單位
70 W Bulb BC / B22d Clear 240 V 92W 2000h 95.5 mm 56mm 290 mA - 1200 lm -
RS庫存編號 711-7174
製造零件編號23138
BrandSylvania
HK$17.936
/個 (每包:10個)
單位
70 W GLS ES / E27 Clear 240 V 92W 2000h 100 mm 55.8mm - D - -
RS庫存編號 901-3204
製造零件編號28BCECOCLASA55
BrandPhilips
HK$15.366
/個 (每包:15個)
單位
28 W Bulb BC / B22d Clear 240 V 35W 2000h 95.5 mm 56mm 120 mA - 370 lm -
RS庫存編號 789-9696
製造零件編號0023488
BrandSylvania
HK$25.60
單位
28 W Globe BC / B22d Clear 240 V 35W 2000h 72.5 mm 46mm - D - -
RS庫存編號 789-9725
製造零件編號0023778
BrandSylvania
HK$25.60
單位
42 W Globe ES / E27 Clear 230 V 55W 2000h 74 mm 46mm - D - -