LED vs. Fluorescent

LED vs. Fluorescent

How does an LED bulb work?

An LED - a light emitting diode (abbreviated as LED in French, but more commonly known as LED for Light Emitting Diode) - Thus, an LED the bulb has no filament, unlike an incandescent bulb, but consists of layers of several semiconductor materials that are aluminum nitride and gallium phosphide. These materials, with no resistance to current, prevent energy loss while creating light. In fact, the excess electrons encounter positively charged atoms, when the electric current passes through the semiconductor layers, which releases energy in the form of light.

Advantages and disadvantages of an LED bulb?

The major advantage of an LED bulb is undoubtedly its high energy efficiency because no energy is lost as seen previously. Thus, with LED technology, the operating time of a light bulb is around 15,000 to 50,000 hours, which is 35 to 50 times longer than a standard light bulb. In the long run, this translates into low maintenance costs and a return on investment of the initial purchase cost, generally higher, of less than one year.

The main disadvantage may be its starting price, the LED actually has an initial cost always higher than for conventional bulbs. However, this statement can only be made if pure acquisition costs are compared. The LED technology is constantly evolving and prices continue to fall. It should be kept in mind that the price of an LED bulb is amortized on average after 2000 hours of use, which remains little.


Application areas

LED lighting has almost unlimited application possibilities - accent lighting, general lighting, etc. Indeed, it is available in a wide range of light colors - from 1700K which corresponds to the light intensity of a 6500K candle which corresponds to daylight - with a color rendering index of 90 to 100 The IRC 100 is that of sunlight. And, it has a light beam (also called opening angle or radiation angle) of 8 ° to 360 ° to reduce, as much as possible, the loss of brightness so the "stray light", that is to say tell the amount of light that falls outside the cone of the light output.



How does a fluorescent lamp work?

A fluorescent lamp is a low-pressure mercury vapor discharge lamp that uses fluorescence to produce visible light. An electric current in the gas excites the mercury vapor. The latter produces shortwave UV light which then shines a phosphor coating inside the lamp.


What are the advantages of a fluorescent lamp?

  1. ·         Low production costs (for tubes)
  2. ·         A varied selection of color temperature (cold white to warm white)
  3. ·         Diffuse light - 360 ° - good for general lighting


What are the disadvantages of a fluorescent lamp?

  1. ·         The flickering of the fluorescent lamp can be irritating to humans (migraine and headaches)
  2. ·         The flickering of a fluorescent lamp is mediocre on video. It creates an ugly, greenish yellow hue.
  3. ·         The light is diffuse (not ideal in the case of a need for a focused beam)
  4. ·         Badly designed ballasts can cause radio interference.
  5. ·         The small amount of mercury in the tubes.


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