0-10V CV LED Driver Technology

How 0-10V constant voltage drivers and low-voltage dimmers bring simple analogue dimming to 12V and 24V LED strip, and how to choose the right one for your project.

0-10V dimmable constant voltage LED driver

Overview

What is a 0-10V CV LED driver?

A 0-10V constant voltage (CV) driver is a 12V or 24V DC LED power supply with an analogue dimming input. A 0-10V control signal on a separate pair of low-voltage wires sets the brightness of the LED strip, linear profile or signage module connected to it: 10V gives full output and lower voltages dim the LEDs smoothly to minimum or off.

Our range includes mains-input drivers from Snappy, LTECH and Meanwell, from 36W to 600W, many with multi-mode inputs that also accept 1-10V, PWM, resistor, Triac or push dimming. For larger or existing installations, LTECH low-voltage 0-10V dimmers add dimming after a standard 12V or 24V power supply, with up to 480W across four channels.

Simple analogue dimming for 12V and 24V LED strip
Flicker-free PWM dimming with stable colour
Multi-mode 0/1-10V, PWM, Rx, Triac and push inputs
Colour temperature (CT) models for tuneable white strip
Low-voltage dimmers for use with existing power supplies

0-10V CV range at a glance

Brands: Snappy, LTECH, Meanwell
Output voltage: 12V or 24VDC
Mains drivers: 36W – 600W
LV dimmers: Up to 480W, 12-24VDC in
Dimming: 0/1-10V, PWM, Rx, Triac, push
Colour: Single colour or CT
IP rating: IP20 and IP67

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The technology

How 0-10V CV dimming works

A 0-10V CV driver takes mains power and produces a steady 12V or 24V DC output for the strip. The control pair, marked DIM+ and DIM-, carries a 0-10V signal from a wall controller, sensor or building management system.

To dim, the driver uses pulse width modulation (PWM): the output stays at full voltage but is switched on and off at high frequency, and the control level sets the on-time in each cycle. The strip dims smoothly while its colour stays consistent.

Alternatively, a low-voltage 0-10V dimmer can sit between a standard CV power supply and the strip, applying the same PWM dimming to the DC output.

Simplified illustration: mains (red, dashed), 24V DC (dark blue) and the 0-10V control pair (teal). Route B lets an existing non-dimmable power supply be dimmed.

Which approach?

0-10V CV driver or low-voltage dimmer?

Both dim 12V and 24V LED strip by PWM. The choice depends on the load size, layout and whether a power supply is already installed.

Feature	Mains 0-10V CV driver	Low-voltage 0-10V dimmer
Input	240VAC mains	12-24VDC from a CV power supply
Components	One unit: power supply and dimming	Separate power supply and dimmer
Power	36W – 600W per driver	Up to 288W single channel or 480W over four channels
Channels	1, or 2 for colour temperature	1 or 4 independent channels
Best for	New installations, luminaires, outdoor IP67 use	Retrofits, DIN rail panels, multi-channel layouts
Examples	Snappy SL-VFM, LTECH LM-G1A2, Meanwell HLG-B	LTECH LT-704-5A, LT-DIN-711-12A

For constant current models, see 0-10V LED driver technology.

Our range

0-10V CV drivers and dimmers compared

Choose the voltage to match the strip, the power to cover the load, and the dimming inputs your controller uses.

Series	Input	Output	Power	Dimming
Snappy SL-VFM	Mains	12V / 24V	75 – 150W	Triac, 0-10V, PWM, potentiometer
Snappy SD-VLP	Mains	12V / 24V	75W	0-10V
LTECH LM-G1A2	Mains	12V / 24V	36 – 150W	0/1-10V, PWM/Rx, push
LTECH LM-G2A2	Mains	12V / 24V, CT	75 – 100W	0/1-10V, PWM/Rx, CT, push
Meanwell HLG-B	Mains	CV / CC, IP67	40 – 600W	1-10V, PWM, resistance
LTECH LT-704-5A	12-24VDC	4 × 5A	Up to 480W	0/1-10V, 10V PWM, push
LTECH LT-DIN-711-12A	12-24VDC	1 × 12A, DIN rail	Up to 288W	0/1-10V, 10V PWM, push

Benefits

Advantages of 0-10V CV LED drivers

Why 0-10V is a practical way to dim LED strip in commercial and residential projects.

Simple to install

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

Smooth PWM dimming

Flicker-free dimming that keeps the strip's colour consistent from full brightness to low levels.

Multi-mode inputs

Many models also accept 1-10V, PWM, resistor, Triac or mains push dimming, to suit almost any controller.

Tuneable white

CT drivers use a second 0-10V input to set the colour temperature of tuneable white strip.

Retrofit friendly

Low-voltage dimmers add 0-10V control to an existing non-dimmable 12V or 24V power supply.

Indoor and outdoor

Slim IP20 drivers for luminaires and IP67 Meanwell HLG-B drivers for outdoor and wet locations.

Selection & set-up

Choosing and installing a 0-10V CV driver

Match the voltage: use a 12V driver for 12V strip and a 24V driver for 24V strip.
Size the power: add up the strip load (W/m × length) and allow at least 20% headroom.
Check the dimmer rating: with a low-voltage dimmer, stay within its current per channel as well as the power supply rating.
Choose the inputs: confirm the driver accepts the controller's signal, such as 0-10V, 1-10V or PWM.
Wire the control pair: DIM+ to DIM+ and DIM- to DIM-, following the manufacturer's and local wiring rules.
Limit voltage drop: on long runs, feed the strip from both ends or from several points.

Related technology and products

Compare other dimming methods and complete the installation:

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12 / 24V

Output voltage

36–600W

Mains driver range

4 ch

Low-voltage dimmer channels

IP67

Outdoor options

Where 0-10V CV drivers are used

Wherever LED strip needs reliable, straightforward dimming by zone.

Offices

Cove and linear strip dimmed with sensors or a BMS.

Retail

Shelf, display and signage lighting set to suit the space.

Hospitality

Bar, back-light and mood lighting with smooth low-level dimming.

Residential

Kitchen, staircase and ceiling strip on wall dimmers.

Control panels

DIN rail dimmers for centralised lighting control.

Façades

IP67 drivers for outdoor linear and architectural lighting.

FAQ

0-10V CV driver questions

A 0-10V constant voltage (CV) driver is a 12V or 24V DC LED power supply with an analogue dimming input. A 0-10V control signal on a separate pair of wires sets the brightness of the LED strip connected to it, from full output at 10V down to minimum or off.

The driver keeps its output at 12V or 24V and dims by pulse width modulation (PWM), switching the output on and off at high frequency. The 0-10V control level sets how long the output is on in each cycle, which keeps the colour of the LEDs consistent as they dim.

A low-voltage dimmer, such as the LTECH LT-704-5A or LT-DIN-711-12A, sits between a standard 12V or 24V constant voltage power supply and the LED strip. It takes the 0-10V control signal and dims the DC output by PWM, so an existing non-dimmable power supply can be used for 0-10V dimming.

Yes. A colour temperature (CT) driver such as the LTECH LM-G2A2 series has two output channels for the warm and cool white LEDs, and uses one 0-10V input for brightness and a second for colour temperature.

Match the driver output voltage to the strip, then add up the strip load in watts (watts per metre multiplied by length) and choose a driver rated at least 20% above that total. For long runs, feed the strip from more than one point to limit voltage drop.

0-10V CV LED Driver Technology