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Product Information
The Ltech LT-840-PWM10V is a high-performance signal converter designed to bridge the gap between professional DMX512 control systems and LED fixtures requiring a 10V PWM dimming signal. This robust 4-channel driver reliably translates DMX data into a smooth, flicker-free 0-100% dimming curve, making it an essential component for any dynamic light show control system. Whether you're managing temporary stage lighting or integrating multi-zone architectural displays, the LT-840-PWM10V ensures your DMX console has precise control over your 10V PWM-compatible LED strip lights. Its wide DC12-24V input range provides flexibility for various low-voltage lighting setups, delivering consistent performance for demanding applications.
Key Features
Standard DMX512 to 10V PWM Conversion
Seamlessly converts universal DMX512 digital signals into four channels of 10V PWM analog signals.
4-Channel Output
Independently control up to four separate zones or groups of LED lights from a single compact unit.
Full 0-100% Dimming Range
Achieve precise, smooth, and flicker-free brightness control across the entire dimming spectrum.
Broad Voltage Compatibility
Operates on a wide input voltage of DC12V to DC24V, making it suitable for most common low-voltage LED systems.
Professional Grade Construction
Built to perform reliably in demanding environments with a wide operating temperature range from -30℃ to 65℃.
Technical Highlights
- Specifically designed for 10V PWM signal requirements, differentiating it from 5V or 0-10V models.
- Stable signal processing ensures accurate translation from DMX commands to PWM output.
- Compact and durable housing for easy integration into control boxes and enclosures.

Product Specifications
| Parameter | Details |
|---|---|
| Model | LT-840-PWM10V |
| Input Voltage | DC12V ~ DC24V |
| Input Signal | DMX512 |
| Output Signal | 10V PWM x 4 Channels |
| Dimming Range | 0 ~ 100% |
| Working Temperature | -30℃ ~ 65℃ |
| Dimensions (L×W×H) | 156 × 78 × 40 mm |
| Package Size (L×W×H) | 180 × 82 × 48 mm |
| Gross Weight | 410g |
Application Scenarios
How to Control & Use This Controller
- Power Input: Connect a DC12V-24V power supply to the V+ and V- input terminals. Ensure the voltage of your power supply matches the voltage required by your LED lights.
- DMX Signal Input: Wire your DMX512 master controller to the DMX signal input terminals. Ensure proper connection for DMX+, DMX-, and GND.
- PWM Output: Connect the four PWM output channels to the signal input of your 10V PWM-compatible LED lights or drivers. Observe correct polarity for all connections.
- DMX Address Configuration: Set the DMX start address on the converter, typically using DIP switches. This address determines which DMX channels from the console will control the four outputs. Consult the user manual for the specific switch settings.
- System Test: Once all connections are secure, power on the system. Use your DMX console to send commands to the configured addresses and verify that all four channels dim smoothly from 0% to 100%.
- This device is a signal converter, not a power source. You must use a separate LED power supply to power your lights.
- Always double-check that the input voltage from your power supply matches the requirements of your LED fixtures.
- Ensure all wiring is secure and correctly polarized before applying power to prevent damage to the converter and your lights.
What's in the Box
- ✓1 x LT-840-PWM10V DMX to 10V PWM Converter
- ✓1 x User Manual
⇩ Downloads & Documents
Frequently Asked Questions
Q: What is the primary function of the LT-840-PWM10V?
A:It converts a standard DMX512 digital signal into four channels of 10V PWM (Pulse Width Modulation) analog signal. This allows you to control 10V PWM LED lights using a professional DMX console.
Q: What is the difference between this model and the LT-840-PWM5V?
A:The key difference is the output signal voltage. This LT-840-PWM10V outputs a 10V PWM signal, whereas the LT-840-PWM5V outputs a 5V PWM signal. Always choose the model that matches the signal requirement of your LED fixtures.
Q: Can this device power my LED strips directly?
A:No, this is a signal converter, not a power supply. It only provides the dimming control signal. You must connect your LED strips to a separate DC12V-24V LED power supply.
Q: Is this converter suitable for a professional light show control system?
A:Absolutely. It's designed for professional applications like stage productions and large-scale architectural lighting where reliable and precise DMX signal conversion is essential.
Q: How do I set the DMX address for this unit?
A:DMX address assignment is typically done via DIP switches located on the device. Please refer to the included user manual for detailed instructions on setting the correct starting address for the four channels.
Q: Can I use this as a replacement for a faulty DMX lighting driver?
A:Yes, it can be a key part of a replacement lighting driver solution. If your old DMX-integrated driver failed, you can pair this converter with a new, standard 10V PWM dimmable driver and power supply to restore full DMX control to your fixture.
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Downloads
Files for LT-840-PWM10VImages
These images were taken with Canon EOS 5D Mark IV and the studio light source is provided by Ra 98's full spectrum LED strip to realistically reproduce the colors of the item itself. All copyrights are created by the superlightingled team, please feel free to browse and download if you are a registered user!

LED Strip Lights Guide
Here you can learn anything about LED strip lights — pick the topic you are interested in to go deeper. We cover LED strip lights, power supplies, controllers, accessories, and how to connect LED strip lights. You can also watch our demo videos.
Led strip lights
►Everything you need to know before you buying led strip lights
| Top 6 Considerations Before Buying LED Strip Lights 1. Where do I want to place the LED strip lights? Indoor or outdoor? • What are waterproof led strip lights? • How to cut and connect waterproof led strip lights? 2. How much LED brightness do I need? 3. The working voltage is available? • 5V VS 12V VS 24V led strips • AC VS DC 4. How long is the LED strip light suitable for my project? 5. Do I need an LED light controller to adjust the LED color and brightness? 6. How to power the LED strip lights? 1. How do led strip lights work? 2. How long can you run an LED strip? 3. How long do LED strip lights last? Is it worth getting led strip lights? 1. Do LED strip lights use a lot of electricity? 2. Why are LED lights energy efficient? 3. Are LED Strip Lights sustainable? 4. What are the pron and cons of led strip lights? 5. Precautions for led strip lights 1. Do LED strip lights overheat? 2. How do you stop LED strips from overheating? 3. Can LED strips catch fire? 4. Is it safe to sleep with LED strip lights on? What are the types of led strip lights? Flexible led strip lights VS rigid led strip lights - 1. What are flexible led strip lights? 2. What are rigid led strip lights? 3. What happens if you bend LED strip lights? 4. What is the difference between flexible led strips and rigid led strips? 1. Can you cut led light strips? 2. What happens if you cut an led strip? 3. How to cut led strip lights? 4. How to connect RGB color changing led strip lights with a connector? 5. How to know what your led strip light is? How to choose the correct SMD led for your strip? Which is the brightest SMD LED? What does SMD 5050 mean? How many lumens is a 5050 SMD LED? How to know what type of LED strip? What is the difference between 2835 and 5050 LED? |
►COB led strip light
| 1. What is COB? 2. What is the COB production process? 3. Different types of COB strip lights 4. What is the difference between COB and SMD led strip lights? 5. What is the difference between COB and LED? 6. Are COB led strips better? 7. How to cut and connect COB led strips? 8. How to install COB led strip lights? 9. Can COB light strips use aluminum channels? 10. Why choose superlightingled? |
►Led neon lights
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►Addressable led strip
| Ultimate Guide to Choosing the Right Addressable LED Strip What is an addressable LED strip? Can you cut addressable LED strips? How to judge if an LED strip is individually addressable? How to choose the best DC12V addressable led strips? How to choose the best DC5V digital led strips? How to choose the right IC for your project? Which IC is most commonly used? How do I know my IC type? How do I know if my IC is good or bad? How many types of IC are there? |
►Color, color temperature, and CRI
| The Color Difference Between Warm White 2700K, 3000K, 4000K, 6000K Pure White and 7000K Cool White 1. What is color temperature? 2. What color temperature is right for me? • 2700K VS 3000K • How obvious is the difference between 2700K and 3000K? • Warm White 3000K VS Natural White 4000K VS Daylight White 6000K • Warm White VS Cool White 3. Enjoy 2700K, 4000K, 6000K 4. Further Reading: How to install Warm White LED light strip? How to choose the right color for your led strip lights? - 1. How many colors are in LED strip lights? 2. What do LED light colors mean? 3. Why do white LED light turns to yellow? 4. Why are your led strip lights not the same color? 5. What is the most relaxing color for LED lights? 6. What color led lights is best for sleeping? 7. Are led lights bad for your eyes? 8. Is cool white or warm white better for eyes? 1. What is the best color temperature? 2. Does color temperature keep the same as time goes by? 3. What color temperature is best for night? 4. Led strip lights about color temperature,CCT VS RGBW VS RGBCCT; What is color rendering index? 1. What is CRI in led lights? 2. How to choose the right CRI when buying led strip lights? 3. What is the relationship between CRI and brightness? 4. Is higher CRI better? High CRI VS Low CRI; 5. How to find CRI value? |
Led strip light connection
| How to connect led strip lights? 1. How to connect led strip lights together? 2. How to connect LED light strips without connectors? 3. How to solder wires to LED strips? 4. How to connect LED strips without soldering? 5. Which one is better between soldering and using a connector? 6. How to connect mutiple led strip lights? 7. How many LED strip lights can you connect? How to connect led strip to the power supply? 1. Ensuring the working voltage and power first 2. How to hardwire led strip lights? 3. Can I connect multiple LED strips to the same LED power supply? How to wire led strip lights? How to wire single color led strip lights? How to wire tunable white/CCT led strip lights? How to wire RGB color changing led strip lights? |
Controller for led strip lights
| How to choose led strip light controllers? 1. WIFI controller 2. RF controller 3. IR controller 4. Bluetooth controller 5. Remote control and panel control 6. Single color controller and multi-color controller 7. DMX512 controller 8. SPI controller 9. DALI controller 10. 0/1-10V dimmer 11. Triac series 12. Sonsor series |
Led power supply
| How to calculate power for led strip lights? 4 steps to calculate the power you need Performance And Reasons Of LED Voltage Drop How to choose led strip light power supply? 1. Alternating current power supply VS Direct current power supply 2. Constant current power supply VS Constant voltage power supply 3. How to choose the best led power supply for your led strip light? |
Led strip light installlation
| How to install led strip lights? What accessories will be needed? 1. Adhesive installation for IP20 and IP65 led strip lights 2. How to choose the right led tape? 3. Can IP20 and IP65 led strip lights use aluminum profiles? 4. How to use aluminum profiles? 5. Mounted clip installation for IP67 and IP68 light strips How to install LED sensor stair lights? Lighting Up Your Stairs With LED Strip Lights Ideas How to install led strip lights on TV? How to install led strip lights outdoor? |
Accessories
| How to choose led strip light connectors? 1. Are all LED light strip connectors the same? 2. How do LED strip lights connectors work? 3. What connectors do you need for LED strip lights? 4. What are the different kinds of LED connectors? 5. How to choose the right connector for your led strip lights? Ultimate Guide on Aluminum Profile for LED Strip Lighting 1. What are aluminium profiles used for? 2. Why choose aluminum profiles? 3. Different types of LED aluminum profiles 4. LED aluminum profile VS COB LED strips 5. How to install LED aluminum channels? 6. How To Get Ideal Light Diffuser For Your LED Strip? 7. Add Black Aluminum LED Light Diffusers For Your Home Lighting 8. How To Find The Right Aluminum LED Light Strip Diffuser Channel? |





