Light Emitting Diode
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| Colour | Voltage |
| red | 1,8 - 2 Volt |
| orange | 2,2 - 3 Volt |
| yellow | 2,4 - 3,2 Volt |
| green | 2,7 - 3,2 Volt |
Assignment
LED-Lamps have a very high efficiency as far as the conversion of electric energy into light is concerned. Apart from that, they can react extremely quickly to on/off switching. If constant on and off switching is required, the service life of the electric light bulb decreases, and the service life of light-emitting diode increases. In addition, it can be produced very economically and is light-weight. A disadvantage is, that it looses roughly half of its brightness at the end.
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