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1-10V

1-10V dimmers are a convenient way to control the brightness of your LED lighting. This system works with a low-voltage signal (between 1 and 10 volts) for stable dimming. The higher the voltage, the brighter the light: at 10V the lamps are at full power, at 1V they’re at the lowest level (often around 10%). At 0V, the lighting usually switches completely off.

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Understanding How 1-10V Dimming Works

1-10V dimming is an analog control method. This means the light output is directly regulated by a variable voltage. A 1-10V dimmer sends a low-voltage signal to a compatible LED driver. The driver converts the signal into the required current for the LEDs, thereby adjusting the brightness of the light.

Unlike phase-cut dimmers, which are installed directly in the 230V electrical circuit, 1-10V dimming requires a separate control wire between the dimmer and the LED driver. This system is robust and widely used wherever a simple and efficient dimming method is preferred.

Applications for 1-10V Dimmers

1-10V dimmers are used wherever precise light control is needed. Typical applications include:

  • Office buildings: For optimal adjustment of light levels in meeting rooms or open-plan offices.
  • Industrial and warehouse halls: Dimmable lighting helps save energy and creates a tailored working environment.
  • Retail stores and showrooms: For optimal display and ambiance thanks to flexible lighting.
  • Schools and educational institutions: Adjustable lighting in classrooms, for example during presentations or various activities.
  • Large spaces with many fixtures: The 1-10V system's scalability makes it suitable for centrally controlling multiple lighting points.

Advantages of 1-10V Dimming

Choosing 1-10V dimming technology provides specific advantages, especially for professional and larger installations:

  • Scalability: Multiple LED drivers can be connected to a single 1-10V dimmer, as long as the maximum current rating isn't exceeded. Ideal for large groups of fixtures.
  • Stable dimming curve: 1-10V dimmers usually provide flicker-free and even dimming.
  • Cost efficiency: The hardware for 1-10V systems is often less expensive than more complex digital solutions (like DALI), especially for large projects.
  • Simple wiring: An extra control cable is needed, but overall wiring is generally straightforward.
  • Wide range of fixtures: Many professional LED fixtures and drivers support 1-10V dimming—offering a broad product selection.

1-10V vs. DALI Dimming: A Comparison

Although 1-10V dimming is effective, it's interesting to compare it to the popular DALI system (Digital Addressable Lighting Interface):

Feature 1-10V Dimming DALI Dimming
Signal type Analog Digital
Wiring Separate control cable required (2-core) Two-wire, no polarity
Control Group control of fixtures Individual addressing of fixtures
Functions Dimming only (On/Off/Brightness) Dimming, scenes, error messages, color temperature control (tunable white), building automation
Complexity Easier to implement More complex, requires programmable controller
Scalability Number of drivers depends on dimmer current Up to 64 addresses per DALI line
Cost Usually lower Usually higher, especially in small installations

Installation and Connection of 1-10V Dimmers

Installing a 1-10V dimmer involves correctly wiring the 230V power supply and the 1-10V control line. Always follow the manufacturer’s instructions, as these can vary by product.

Installation steps:

  1. Turn off the power: Safety first. Make sure the power is completely off before you start.
  2. Connect the 230V power supply: Connect phase and neutral wires to the corresponding inputs of the 1-10V dimmer.
  3. Connect the 1-10V control line: These two thin wires (+ and - or 'Dim'/'Dim-') connect the dimmer to the 1-10V input on the LED driver. Mind the polarity if indicated.
  4. Connect the 230V output to the driver: The switched 230V output from the dimmer goes to the 230V input on the LED driver.
  5. Check all connections: Inspect all wiring for a correct and safe installation.
  6. Turn the power on and test: Power the circuit and test the dimmer.

For complex installations or if you are unsure about the wiring, we recommend hiring a professional electrician.

Frequently Asked Questions About 1-10V Dimmers

Does every LED lamp work with a 1-10V dimmer?

No, only LED lamps or fixtures with compatible 1-10V dimmable LED drivers can be controlled with 1-10V. This information can be found on the product page or in the driver specifications.

Is a separate power cable needed for 1-10V dimming?

Yes, in addition to the 230V supply, a separate control cable is needed to carry the 1-10V signal from the dimmer to the LED driver (usually two-core).

What happens if the 1-10V signal is lost?

If the 1-10V signal is lost or drops below 1V, most drivers will switch off the lighting or dim to the lowest level.

Can I combine a 1-10V dimmer with other dimming systems?

No, a 1-10V dimmer is designed solely for 1-10V dimmable drivers and cannot be directly combined with other dimming methods such as phase-cut, PWM or DALI, without an appropriate converter.

Why choose 1-10V dimmers?

1-10V dimmers are a reliable, efficient solution for centrally dimming large groups of LEDs. They offer uniform, affordable dimming and are ideal for professional applications and projects.