Dimmer

To dim a light, you generally need what is called a dimmer. A dimmer is a control unit that regulates the brightness of the light fixture or light source. In Table- and Floor Lamps A dimmer is often already installed; for dimmable Pendulum- or Ceiling Lights In contrast, an external (LED) dimmer is usually required. There are various ways to dim a light fixture, and accordingly, there are also different types of Dimmers. First, there are phase-cut dimmers, which are suitable for incandescent bulbs and 230-volt halogen lamps (high-voltage halogen lamps) as well as for low-voltage halogen lamps (low-voltage halogen) that are powered by conventional magnetic transformers. The principle behind this dimmer is that the current is switched on with a delay after the so-called zero-crossing of the sine wave and continues to flow until the next zero-crossing. On the other hand, phase-cut dimmers are also used; these are primarily employed for dimming low-voltage halogen lamps connected to electronic transformers, but are also suitable for incandescent bulbs and HV halogen lamps. This type of dimmer operates in a slightly more complex manner, which is exactly the opposite of how a leading-edge dimmer works. The current begins to flow immediately after the zero-crossing point and stops shortly before it reaches the next zero-crossing point.  There are also universal dimmers that automatically detect the appropriate dimming method. However, fluorescent tubes cannot be dimmed using either of these methods, which is why they require an electronic ballast (EVG dimmer). A dimmer can then be controlled using a rotary knob or a push-button or touch dimmer.