5 Myths and Facts about LEDs

The familiar light bulb has served for quite some time. In December 2008, the EU Member States decided the so-called bulb-regulation, which it the old-fashioned sort of lamps with low energy efficiency gradually want. Since September 2009, no matte bulb more is commercially available, which owns more than 75 watts of power. The following year, the bulbs were screened with 60 Watt, later ones with 40 and 10 watts.

Facts about LED

Consumers were annoyed by this forced migration first. You should now switch to energy-saving LEDs, but why? To LEDs located wrestled numerous myths:

  1. LEDs radiate very cold light: This is wrong, LED lights have now a wide color range. What color has a LED depends on its color temperature, which is measured in Kelvin (K). The lower the temperature, the warmer the light the lamp.
  2. LEDs are not suitable for general illumination, the greater the power consumption of an LED, the more it glows. Modern LEDs are capable of up to 100 lumens (lm) per watt (W) to be delivered. These LEDs are similar to the well-known 100-watt bulbs, but consume far less energy at the same time much longer life.
  3. LEDs produce unpleasant, artificial light: Another mistake, because LEDs have a high color rendering index (CRI). This color rendering index characterizes light sources in terms of naturalness. The index is specified with a number from 0 to 100 bar. The higher it is, the more natural light. LEDs have typically offering a CRI value of 80 to 90 – fluorescent tubes reach but only around 72nd
  4. LEDs do not develop warmth: Of course, LEDs generate heat, otherwise they would not produce light. Unlike traditional light sources do not give this to the surroundings.
  5. LEDs are expensive: If one only looks at the purchase price, is not this assertion. Nevertheless, it is false in general, because LED lights have a low energy consumption and long life. Looking at the lumen-Euro ratio of an LED, they are much cheaper than other light sources.

Myths about LED

The brightness and consumer a LED

Let’s go at this point in more detail on the lumen-Euro ratio of B22 LED on, finally is the high price still the biggest mistake of herumkreist at the Otto-Normal consumers.

To illustrate the low power consumption, we show in the table below the brightness, measured in lumens, in relation to the power consumption (in watts):

BRIGHTNESS LED LIGHT BULB
200-225 lm 3 W 25 W
400-450 lm 4-5 W 40 W
600-700 lm 8-10 W 60 W
1200-1500 lm 12-15 W 100 W

is not difficult to see in the table, a modern LED consumes only a fraction of the energy required by an incandescent bulb to produce the same brightness. This low energy consumption in turn has a positive impact on the electricity bill. Along with a long service life produced the aforementioned good lumen-euro exchange rate.

Brightness of LED

Gallery

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