Dimmable LED bulbs have to be dimmed using technology that is quite different from conventional lighting. And conventional lighting here refers to incandescent and fluorescent lights. It is even very distinct from CFL lights. LED means light emitting diode. A diode is a semiconductor device that has a lot of applications in electronics and high-technology. It is not too different from a transistor. Lighting is one of the more recent applications and dimmable LED bulbs are also being developed for ambient lighting purposes. LED lights were initially small and weak and their application was limited to pilot lamps in electronic circuits. But as technology developed, they started to get brighter and more powerful and now they can be used for ambient lighting and trends indicate that they might eventually replace bulbs and fluorescent lights and become the lighting technology of the future.
When it comes to dimmable LED bulbs GU10, they cannot be dimmed like you would dim a bulb or a fluorescent light. There are two commonly employed methods used to dim LED lights – analogue and PWM or Pulse Width Modulation. Analogue is more or less similar to dimming of conventional bulbs and fluorescent lights, but there are special considerations to be made while using LEDs. The dimming is done using a device known as a potentiometer.
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