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What different dimming techniques are there?

There are different ways to dim lighting. These dimming techniques are divided into three groups:
  1. Dimming via power component (decrease in power): phase on and phase off
  2. Dimming via control signal (analogue): 0-10V, 1-10V
  3. Dimming via control signal (digital): DALI
For the first type, dimming of electrical potential, a classic 3 core electrical cable will do. For the other two types of dimming, a 5 core electrical cable is required.

Phase control

Phase control is a dimming technique based on the electric wire that is often used for halogen and incandescent lamps. It “clips” part of the sine wave of the alternating current to dim the light. The following examples will make this clear.

Leading and trailing edge phase illustration



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Ontdek alle lampen met deze dimtechniek

1-10 V

With a 1-10 V dimming technique, a signal is transmitted between 1 V and 10 V. 10 V is the maximum amount (100%) and 1 V is the minimum amount (10%).

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0-10 V

Transmits a signal between 0 and 10 V. The output of the lamp is scaled such that a voltage of 10 V provides 100% light output. And, 0 V provides the least light output.

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DALI stands for Digital Addressable Lighting Interface. It is an international standard that defines how a lighting installation should communicate with control and steering systems.
Important to know is that DALI is independent of manufacturers. This means that it is possible to use different brands of components in the same system.
Each system consists of a controller and a maximum of 64 lighting components, such as a ballast. Each of these components is given a unique address. The controller can control these components because the DALI system can transmit and receive data.
DALI is dimmable from 0-100%.

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Built-in dimmers

There are two types of built-in dimmers: rotary or push button.
1. A rotary knob dimmer
It can be pressed to turn lights on or off. You turn the knob to select the light intensity.

Rotary knob dimmer

2. A push button
It works according to the same on-off principle. However, to change the light intensity, you must hold in the button. Some push button dimmers alternate in their operation (brightness increases during the first long press, dimming occurs during the second long press). Other push button dimmers reach a specific percentage (brightness increases to an specific intensity when N percent is reached and then dims again).

Push button dimmer