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Best compact fluorescent lamps–buy now-INFORMATION-IDEASFORSURE

441.00 399.00

I am recommending Ever ready mini 5 watt CFL .This compact fluorescent lamp is white in colour and comes in pack of three. I am using it for reading lamp  and passage lighting. This compact fluorescent lamp  has B22 cap which is also called bayonet cap with base diameter of 22mm. Similarly you get CFL with E14 and E27 also. So this means the base diameter is 14mm and 27mm. respectively. These are also called small Edison screw and medium Edison screw.

This compact fluorescent lamp is powered with VFRT. which means voltage fluctuations resistant technology. Hence it provides long life to CFL. Its colour temperature is 6500 kelvin.

pros

This lasts six times longer than standard incandescent bulb  and saves upto 80% energy.

Flicker free start and wide voltage operating range.

one year warranty.

cons

Mercury content is 3.2 mg. Do not dispose with regular garbage.

The colour temperature or lumen output should be checked before purchase. If you want cool daylight effect the lumen output or colour temperature should be 7000-7500 kelvin. For warm white colour temp. colour temperature should be 2700-3200 Kelvin.

I am using these bulbs for my passage and reading lamp. I have found it last long and also gives enough white light.

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SKU: 13503 Category:

Description

I am writing about daily use products  ie compact fluorescent lamps which we use in our house for lighting. It is a replacement for incandescent bulb or Halogen lamp.

compact fluorescent lamps

what is compact fluorescent lamps or CFL?

This compact fluorescent lamp or compact fluorescent light is energy saving light.  Compact fluorescent tube is a fluorescent lamp designed to replace an incandescent light.

This lamp uses a tube which is curved or folded to fit into the space of an incandescent bulb. It  lasts eight to fifteen times longer than incandescent bulb and saves one third or one fifth power. Although it is costlier than incandescent bulb it saves five times purchase price in electric costs.

It contains highly toxic mercury so it has been banned in many countries for disposal with regular garbage. special collection systems for CFL and hazarduous waste are setup.

CFL radiate spectral power distribution. It is cooler than incandescent bulb so it can replace use of airconditioners in warm climate.

Improved phosphorus formulation have perceived color of light emitted by CFL. The  best  soft white CFL is similar in colour to standard incandescent bulb.

HISTORY

general Electric was the first company  to produce circular, U shaped lamps and thereafter spiral  CFL . Helical  CFL  manufactured in China by  Shanghai  Xiangshan became commercially available.   So CFL sales inceased in China. CFL was dominant to residential section.

DESIGN

There are two types of CFL integrated (screwed type ) and Non integrated ( Plug in type).

Integrated lamps combine the tube and the ballast in a single unit. So incandescent bulb can be replaced by CFL easily because

  1. It works well in any incandescent light fixtures.
  2. cost of converting to fluorescent is reduced.

Non integrated CFL have the ballast permanently installed in the luminaire and only fluorescent tube is changed at its end of life. They are larger, last longer compared to integrated ones. THEY DON’T NEED TOBE REPLACED WHEN THE TUBE REACHES  ITS END OF LIFE.  Non integrated CFL housing can be more expensive and sophisticated.

how does it work

They are gas discharge lamps.

They use electricity emitted from cathode to excite mercury vapour contained within the glass envelope.  The process used here is called inelastic scatter.

Phosphorus and noble gas argon is contained in this glass envelope.

The mercury atoms produce Ultra violet light which cover the phosphorus in the lamp to fluoresce or glow producing  visible lights.

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