What is 0-10v dimming?

0-10V dimming is an analog low-voltage signal dimming method, commonly found in commercial, industrial and professional lighting fields.

Principle:

Two independent circuits:

Power supply circuit: It provides the main power (AC high voltage) required for the operation of the lamp. This circuit is always unobstructed to ensure the normal operation of the driving power supply.

Control circuit: An additional low-voltage DC signal line is used to transmit dimming signals. This circuit carries a DC voltage signal ranging from 0V to 10V.

Control logic:

10V Voltage: When the voltage on the control line is 10V (or the maximum voltage; in some systems, it is +10V), the driver power supply will command the lamp to output 100% of its maximum brightness.

0V Voltage: When the voltage on the control line gradually drops to 0V (the minimum voltage; in some systems it ranges from -10V to +10V, but 0V is the minimum), the driver power supply will command the lamp to output the lowest brightness (which could be completely off, or 1% or 10% of the brightness, depending on the driver design).

Intermediate value: When the voltage varies between 0V and 10V, the brightness changes proportionally. For instance, a 5V signal corresponds to approximately 50% brightness.

Requirements for the lamp end:

LED lamps must use a dedicated driver power supply that supports 0-10V dimming. This driver power supply has two input interfaces: one is connected to the main power supply, and the other is connected to the two low-voltage control lines.

Advantages:

Excellent dimming performance: Generally, it can achieve smooth and flicker-free dimming with a wide dimming range (up to 0.1% - 100%).

Good compatibility: As long as the driver and controller both comply with the 0-10V standard, products from different brands can usually work well together.

No minimum load issue: Perfect for driving a large number of low-power LED lamps.

Stable and reliable: The analog signal has strong anti-interference ability and the system is stable.

Disadvantages:

Extra wiring is required: Two separate low-voltage control lines must be laid, which increases the complexity and cost of the wiring. It is not suitable for retrofits.

Higher cost: The cost of drivers and controllers is usually higher than that of thyristor solutions.

Main applications:

Newly-built or large-scale renovated commercial and industrial lighting projects in offices, shopping malls, schools, hospitals, factories, etc. It is also frequently used in stage lighting and intelligent lighting control systems.