The dimming efficiency of LED lighting fixtures depends on the dimming power supply. Nowadays, the most common dimming methods can be divided into 5 major categories: Triac dim, 0-10V dim, 1-10V dim,PWM dim,Resistor dim. This article mainly analyzes the difference between 0-10V dimmer and 1-10V dimmer and their working principle.

0-10V dimmer

0-10V dimming power supply design with control chip, when connected to 0-10V dimmer, change the output current of the power supply through 0-10V voltage change, adjust the brightness of the light, for example: when 0-10V dimmer modulation At 0V, the current drops to 0mA, the light is dimmed to its minimum brightness, but usually a switch is required to turn it off completely.

When the 0-10V dimmer is adjusted to a maximum of 10V, the current will reach the maximum value of the power output, and the brightness will also reach the brightest, and the output voltage will remain unchanged. In a dimming system, “0-10” uses a controller to adjust the voltage on the dimmable light. In brief, the control signal is a DC voltage that varies between 0 and 10V.

But unshielded 0-10V dimmer lines are subject to radiated interference like antennas (from transformers, radio transmitters, motors, etc.), which will cause the lights to flicker.

DC 0-10V output vs dimming input

1-10V dimmer

The 0-10V dimming includes 1-10V dimming. 1-10V is a stable and reliable dimming method for low voltage lamps.The way it works is actually pretty simple.Each lamp has its own separate transformer to control the lamp.when 1-10V dimmer is adjusted to 1V, the brightness of the light is the darkest level, when 1-10V dimmer is adjusted to 10V, the brightness of the light is the brightest level. When the dimming signal voltage is at 1V, the dimmer is darkest, and the lamp is off between 1V and 0V.

The dimming effect of 1-10V dimming power supply has a good safety guarantee. It is linked by transistors to achieve light, and there will be no light flickering phenomenon. 1-10V dimming power supply play a significant role in real life. 1-10V dimming power supply can effectively help adjust the whole system, and achieve energy saving and environmental protection effect.

 

DC 1-10V output vs dimming input

What is the difference between 0-10V dimmer and 1-10V dimmer?

The main difference between 0-10V and 1-10V is the direction of the current between the dimmer and the driver.

0-10V will be on at 0.3V, 1-10V will be on at 0.7~0.8V, and the lamp will not be turned off completely. The switching power supply is designed with a control chip. When the 0-10V dimmer is connected, the 0-10V voltage changes, changing the output current of the power supply, and reducing the light. For example, when the 0-10V dimmer is modulated to 0V, the current is reduced to 0, its light brightness is also off (has a switch function), when the 0-10V dimmer is turned up to a maximum of 10V, the output current will also reach 100% of the power output, the brightness will also be 100%(The output voltage is Changeless). When 1-10V dimmer is adjusted to a minimum of 1V, the output current is also 10%, such as to 10V (to the maximum), the output The current will also reach 100% of the power output, and the brightness will also be 100%. (The output voltage is constant.) 1-10V has no switching function, and the lamp cannot be turned to the minimum closing function.

0-10V signals are sensitive to external interference. 0-10V wires should not be routed next to power cables or placed next to potential noise sources.0-10V is mostly used for recreational lighting, 1-10V is mostly used for general lighting

 

What is the Difference Between 1-10V Dimmer and 0-10V Dimmer?