0-10V LED Driver Technology

How 0-10V dimmable constant current LED drivers use a simple analogue control signal to dim LED luminaires, and how to choose between 0-10V, 1-10V, multi-mode and tuneable white drivers.

Overview

What is a 0-10V LED driver?

A 0-10V dimmable LED driver is a constant current LED power supply with an analogue dimming input. A low-voltage DC control signal, carried on a separate pair of wires, sets the light output: 10V gives full brightness, and lowering the voltage dims the LEDs smoothly down to their minimum level or off. It is one of the simplest and most widely used ways to dim commercial LED luminaires.

Our 0-10V CC range from Lifud and LTECH, plus the SRP-2007 50W driver, covers 8W to 50W, with output currents from 100mA to 1500mA set by DIP switch or NFC programming. Multi-mode drivers also accept PWM and variable resistor (Rx) signals, and LTECH's dual-channel models add 0-10V tuneable white control.

Simple analogue dimming from a wall controller, sensor or BMS
Smooth, flicker-free dimming to 1% (0.01% on LTECH T-PWM models)
0-10V, 1-10V, PWM and Rx inputs on multi-mode drivers
Output current set by DIP switch or NFC
Tuneable white dual-channel options

0-10V CC range at a glance

Brands: Lifud, LTECH
Power: 8W – 50W
Output current: 100mA – 1500mA
Output voltage: Up to 48VDC
Input: 100-240VAC / 220-240VAC
Dimming: 0-10V, 1-10V, PWM, Rx
Current setting: DIP switch or NFC
Colour: Single colour or tuneable white

Request a Quote Technical Enquiry

The technology

How 0-10V dimming works

Each driver is connected to mains power and, separately, to a two-wire control pair marked DIM+ and DIM-. The driver's dimming input supplies a small current, and the controller sinks it to pull the control voltage down between 10V and 0V.

The driver reads that voltage and reduces its constant current output in proportion: around 10V gives 100% output, and the light dims as the voltage falls. On dim-to-off models the LEDs switch off at about 0.5V; on 1-10V models the light holds at minimum below 1V.

Because the signal is analogue, every driver on the same control pair dims together. Different zones need their own control channels.

Simplified illustration: mains (red, dashed) powers each driver, while the 0-10V control pair (teal) sets the same dimming level on every driver connected to it.

Control signals

0-10V, 1-10V, PWM and Rx compared

Multi-mode drivers accept several analogue signals on the same DIM terminals, so one driver can suit different controllers.

Signal	How it works	Low end	Typical controller
0-10V	DC control voltage from 0V to 10V sets the output level	Dim-to-off at about 0.5V	Wall dimmers, sensors, BMS outputs
1-10V	DC control voltage from 1V to 10V sets the output level	Holds at minimum below 1V; switch off at the mains	Wall dimmers with a mains switch
10V PWM	10V pulse signal; the duty cycle sets the output level	Dim-to-off at a few % duty	PWM controllers and lighting modules
Rx	Variable resistor across DIM+ and DIM-, typically 0-100kΩ	Dim-to-off at low resistance	Simple potentiometer, no power needed
Fixed resistor (Rx)	A fixed resistor across DIM+ and DIM- holds the output at a set current below the rated value	Not used for dimming; sets a fixed level	No controller: sets the CC value in the luminaire

Our range

0-10V CC drivers compared

Choose the power and current to suit the LEDs, then the dimming inputs and current setting method you need.

Series	Power	Output current	Current setting	Dimming
Lifud LF-AAA	8 – 40W	100 – 1050mA	DIP switch	0-10V
Lifud LF-ABA	12 – 40W	Up to 1050mA	DIP switch	0-10V / PWM / Rx, 12V AUX
LTECH SE-W1A	10W, 20W	From 100mA	NFC	0-10V
LTECH SE-W1A-DIP	10 – 40W	From 350mA	DIP switch	0-10V
LTECH SE-W2A-NFC	30W, 40W	200 – 1050mA	NFC, 1mA steps	0-10V / 1-10V / PWM / Rx, tuneable white
SRP-2007	50W	250 – 1500mA	DIP switch	0-10V / 1-10V

Benefits

Advantages of 0-10V LED drivers

Why 0-10V remains a popular choice for dimming commercial LED lighting.

Simple to install

Just two low-voltage control wires alongside the mains, with no addressing or commissioning.

Smooth dimming

Flicker-free dimming to 1%, or down to 0.01% with LTECH T-PWM technology.

Wide compatibility

Works with wall dimmers, occupancy and daylight sensors, and building management systems.

Cost effective

An economical way to add dimming where individual addressing is not needed.

Tuneable white

Dual-channel drivers use a second 0-10V input to set colour temperature as well as brightness.

Flexible set-up

Set the output current by DIP switch, or by NFC from a phone app without powering the driver.

Selection & set-up

Choosing and installing a 0-10V driver

Match the current: set the output current by DIP switch or NFC to the LED module's rated current.
Fine-tune with a fixed resistor: on Rx-capable drivers, a fixed resistor across DIM+ and DIM- sets the output current below the DIP switch value. Choose its value from the driver's Rx dimming curve.
Check the voltage window: the LED forward voltage must sit within the driver's output voltage range.
Choose the signal: 0-10V dim-to-off, 1-10V, or a multi-mode driver to suit the controller.
Size the controller: check how many drivers it can sink current for on one control pair.
Wire the control pair: DIM+ to DIM+ and DIM- to DIM-, kept separate from the mains wiring as the instructions require.
Zone the lighting: use a separate control channel for each group that needs its own level.

Related technology and products

Compare other dimming methods and driver types:

Ask an Engineer

0–10V

Analogue control signal

Typical dimming depth

8–50W

Power range

1.5A

Maximum output current

Where 0-10V drivers are used

0-10V suits any space that needs reliable, straightforward dimming by zone.

Offices

Panels and downlights dimmed by zone, sensor or BMS.

Retail

Track and downlights set to suit displays and opening hours.

Education

Classroom dimming from simple wall controls.

Hospitality

Restaurant, bar and hotel lighting with smooth low-level dimming.

Warehouses

High-output luminaires dimmed by occupancy sensors to save energy.

Residential

Kitchen and living-space downlights on rotary or slide dimmers.

FAQ

0-10V driver questions

0-10V is an analogue lighting control method. A low-voltage DC signal between 0 and 10 volts, carried on a separate pair of control wires, sets the light output of the driver: 10V gives full brightness and lower voltages dim the LEDs, down to minimum or off.

With 1-10V, the driver dims to its minimum level at 1V and below, and the light is switched off by breaking the mains supply. With 0-10V dim-to-off drivers, the light turns off when the control signal falls to around 0.5V or below, so no separate switching is needed. Many modern drivers recognise both signals automatically.

Several drivers can be wired in parallel on the same control pair, and they all dim together. The number depends on how much current the controller can sink compared with the current each driver's dimming input supplies, so check both datasheets. 0-10V is not addressable, so drivers that need different levels need separate control channels.

Yes. The control pair is marked DIM+ and DIM-, and must be connected to the matching terminals on the controller. If the DIM input is left unconnected, most drivers run at 100% output. Always follow the driver and controller instructions and local wiring regulations.

Depending on the model, the output current is set by DIP switches or by NFC programming with a phone app. On drivers with an Rx input, a fixed resistor across DIM+ and DIM- can also hold the output at a set current below the rated value, chosen from the driver's Rx dimming curve. Set it to match the LED module's rated current before connecting the LEDs, and check that the LED forward voltage sits within the driver's output voltage range.

0-10V LED Driver Technology