Products
Smart Tunable White Driver

Smart Tunable White Driver

A linear LED driver is an electrical device used to regulate and control the current in an LED light source. It supplies a constant voltage, regardless of how much current is drawn from it, which allows for stable and consistent performance.
JUSINPOWER: Your Leading Constant Current LED Driver Supplier

 

Our company was established in 2012 and is a national high-tech enterprise. We mainly take charge of R&D, production, sales, and service of LED drivers. We have over 1000 clients worldwide and over 3 million output every year. Our products have been sold worldwide, such as in Thailand and USA.

Custom Service
We can customize the lamp structure, required functions, parameters, etc. Also, we provide OEM&ODM services and a one-stop solution including a full design, manufacturing, and after-sales.

Complete Certification
The company has passed the "ISO9001:2015" quality management system certification as well as the certificate of national high-tech enterprise. The products are compatible with multi-national certifications, including China CQC certification and international UL, CUL, TUV, ROHS, CE, CB, SAA, FCC, CCC, etc.

Strong Production Ability
With a 4000 square meters factory in Foshan high-tech Zone, the company has 3 patch production lines and 3 plug-in production lines. There are around 100 employees and the annual capacity reaches 5 million shipments. Not only does the company have a professional R&D team of about 20 people, but also has advanced equipment to support such as SMT machines, automatic gluing machines, aged vehicles, reflow solder, and so on.

Professional Team
Most of the R&D team has 10 years of experience in the LED lighting industry. The team covers professionals from multiple fields including electronic engineering, optical design, and lighting engineering, providing comprehensive technical support to customers.

 

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5 CCT LED Driver

Its dual sets of 0-10V dimming channels offer precise control over LED lighting systems, enabling users to adjust the brightness and color temperature of LEDs with ease. To ensure the reliability and safety of the product, the 5 CCT LED driver is equipped with protective features. These include over-voltage protection, short-circuit protection, and over-temperature protection .

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0-10V Tunable White LED Driver

The product allows for precise control over the color temperature of the emitted light. Its extended metal shell not only enhances the aesthetic appeal of the product but also serves a crucial function in heat dissipation. Ideal for use in panel lights, uplights, downlights, linear lights, floor lights, and more, this driver can be seamlessly integrated into various lighting systems.

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2 Channel LED Driver

The product has dual channels and offer 5 levels of brightness and colors temperature to control, which is suitable for various occasions. Also, this product has 3 CCT adjustable lights including 3000K (warm white), 4500K (neutral white), and 5000K (daylight white).

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Casambi LED Driver

Casambi is an advancing lighting-control solution based on Bluetooth Low Energy (BLE), using robust, high performance mesh networking technology. This driver can be controlled by blue-tooth without WiFi or wireless technology. With multi-functional constant current, it can offer smooth and ambient light.

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LED Driver 2 Line Cct

The product is widely used for museum, exhibition, and factory. It is programmable and flicker-free, providing smooth experience of light control. In addition, there are double dial switches to control power and color temperature for this driver.

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Smart Tunable White Driver

This driver is an isolated constant current LED driver. With 5 years warranty and 1% deep dimming, users can adjust colors and brightness by the DIP switch or an external dimmer.

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Deep Dimming Tunable White LED Driver

This driver has passed FCC, CUL certifications and has dual output channels. The isolated constant current power supplies ensure safe and stable operation, even in potentially hazardous environments. The dual 0-10V dimming channels provide flexibility and convenience, allowing users to independently control multiple LED lights from a single power supply.

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40W Tunable White LED Driver

With the maximum power of 40W, it has ability to accept a 0-10V positive adjustment brightness signal, enabling precise control over the intensity of the LED light output. And it can accommodate a wide range of input voltages, from 100-277Vac to 120-347Vac. This ensures seamless operation across different power grids and geographies.

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60W Tunable White LED Driver

It is isolated and constant current to ensures safe and efficient operation of LEDs. The built-in 12V 100mA (max) constant voltage auxiliary power supply offers additional flexibility, making it easy to power auxiliary electronics such as sensors or controllers. The dual channel output design of the driver allows for flexible control of both the main LED channel and the auxiliary channel.

 

 

What is Linear LED Driver

A linear LED driver is an electrical device used to regulate and control the current in an LED light source. It supplies a constant voltage, regardless of how much current is drawn from it, which allows for stable and consistent performance. Linear drivers are ideal for applications where precise lighting control is required, such as when dimming or color-mixing lighting fixtures. They provide smooth transitions between light levels and can help reduce power consumption.

Isolated Smart Dimmable LED Drivers

 

 

Common Types of Linear LED Driver
 

Internal LED Drivers

Internal LED drivers are built into or onto the lamp itself. Think of your low-power indoor lighting such as LED bulbs, they will typically have a driver built into them. Doing this makes their cost lower and also creates a better-looking product as it is all self-contained and hidden within the internals.

External LED Drivers

External LED drivers are those that are fitted outside the light source. These are typically going to be used with higher power applications along the lines of sports lighting, street lights, and such. However, they are also used with LED tape, which whilst it may not be of a higher power, by the nature of it there is nowhere to internally mount the driver. The main advantage of an external driver is it can then be remote, so at the bottom of a pole meaning it's much easier to access for maintenance and replacement should anything go wrong, or with the likes of the LED tape and driver combo the driver can be replaced with the tape still in place should it fail.

 

Troubleshooting of Linear LED Drivers
 
 
Dimming Issues: Flickering Dimming Levels

One of the most common problems encountered with LED drivers is flickering or inconsistent dimming levels. This can be caused by various factors, including incompatible dimmer switches or poorly designed LED drivers.
●Verify compatibility: Ensure that the dimmer switch being used is compatible with LED lighting. LED drivers often require specific dimmers that are designed for low-voltage lighting.
●Check load requirements: LED drivers have specific load requirements, and using a dimmer with a load below the minimum threshold can cause flickering or erratic dimming. Make sure the total wattage of the LEDs connected to the driver meets the minimum load requirements.
●Upgrade the driver: If the above steps do not resolve the dimming issues, consider upgrading to a higher-quality LED driver or one specifically designed for dimming applications.

 
Overheating: Driver or LED Failures

Overheating can lead to premature failure of both the LED driver and the LEDs themselves. Excessive heat can damage the internal components, resulting in decreased performance or complete failure.

  • Adequate ventilation: Ensure that the LED driver is properly ventilated. Poor ventilation can cause heat buildup, especially in enclosed fixtures. Consider installing heat sinks or fans if necessary.
  • Operating temperature range: LED drivers have specified temperature ranges within which they can safely operate. Ensure that the ambient temperature does not exceed the maximum temperature specified by the manufacturer.
  • Reducing load: If the LEDs connected to the driver exceed their maximum load- capacity, it can lead to overheating. Check the load requirements and consider reducing the number of LEDs connected or using a driver with a higher load capacity.
 
Inconsistent or Flickering Output: Voltage Fluctuations

LED drivers should provide a stable and consistent voltage output. However, voltage fluctuations can lead to inconsistent brightness levels or flickering.
●Voltage measurement: Use a multimeter to measure the voltage output of the LED driver while the LEDs are powered. If the reading fluctuates significantly, it indicates a potential issue with the driver.
●Input power stability: Unstable or fluctuating input power can affect the performance of the LED driver. Ensure that the power source is stable and free from voltage spikes or surges. Consider using surge protectors or voltage regulators if necessary.
●Check wiring connections: Loose or faulty wiring connections can also cause voltage fluctuations. Inspect the connections between the driver, LEDs, and the power source, and recheck them to ensure they are secure.

 
Compatibility Issues: Incompatible LEDs

LED drivers are specifically designed to operate within certain voltage and current ranges. Incompatible LEDs, i.e., those that does not match the driver's specifications, can lead to performance issues or even failure.

  • Check specifications: Verify that the LEDs being used are within the voltage and current range specified by the LED driver. Using LEDs with higher or lower ratings can lead to unstable operation.
  • Retrofitting considerations: When retrofitting older fixtures with LED lights, compatibility becomes a critical factor. Ensure that the LED driver is matched to the retrofit lamps or tubes being used.
  • Consult manufacturer documentation: If the compatibility issue persists, consult the manufacturer's documentation for guidance on compatible LEDs. They may offer specific recommendations or compatibility lists for their LED drivers.
 

 

How to Choose an Linear LED Driver

 

Know the Type and Number of LED Lights in the Setup
Identifying the type and number of LED lights you need in your installation, as well as how you will arrange them. You need a constant-current LED driver if your lights are wired in series, like ground and decking lights. You need a constant-voltage LED driver if they'll be wired in parallel, like with LED tape or commercial LED strip lights.

Check the Milliamp Rating of Your LEDs
Ensure that the LED lights' milliamp rating is the same as the LED driver's. Amps and milliamps are the units of measurement for electrical current. While LED lights come in a variety of milliamp ratings, the most popular options are 350mA and 700mA.

Efficiency
When it comes to powering LED lights, efficiency is vital. The efficiency of a power supply tells you how much of the power being used is going towards lighting the LED. The higher the efficiency percentage, the more energy you save. For optimal performance, choosing a power supply with an efficiency rating of 80% or higher is a good idea.

Power Factor
When choosing an LED power supply, it's important to consider its power factor. The power factor measures how much of the real power load the driver places on the electrical network. The range for the power factor is from -1 to 1. A power factor closer to 1 means the driver is more efficient. A standard for the power factor is 0.9 or higher. If a driver's specification does not mention a power factor, it usually means that the device has a power factor below 0.9, which is less efficient.

Small or Large LED Power Supplies
Consider where you will install it. If you plan to place it inside the product you're creating, make sure it's small enough to fit in the designated space. If you're installing it outside the product, you'll need a way to mount it nearby. Many different power supplies are available in various sizes and shapes to fit your specific needs.

Class I or Class II LED Power Supply
Class I LED drivers have basic insulation and must be connected to a protective ground to reduce the risk of electric shock. This is achieved by using basic insulation and connecting conductive parts to the earth in case the basic insulation fails, preventing the generation of dangerous voltage. On the other hand, Class II LED drivers provide additional safety measures, such as double or reinforced insulation, in addition to basic insulation to prevent electric shock. They do not rely on protective ground or installation conditions for their safety.

UL/CE or Other Certificates
It's important to choose an LED power supply that is UL/CE certified. These certifications ensure better safety compared to those that are not certified. These certifications are often required for new and remodeling projects. Other certificate requirements from different countries for LED power supply, such as PSE, SAA, etc.

Safety Protection
It's important to look for power supplies with protection features like over-current, over-temperature, short-circuit, and open-circuit protection. These features help to prevent problems by shutting down the power supply in the event of a fault. While they aren't required by law, they are essential for safe power-supply use. To ensure that you're using your power supply safely, installing power supplies with these protection features is best.

 

 
How to Install LED Driver
 
01/

Turn off the Power
Before beginning the installation process, ensure that the power to the lighting system is turned off to avoid electrical shock.

02/

Connect the Wires
Connect the wires from the LED driver to the lighting system's wires, making sure that the polarity is correct. The positive wire should be connected to the positive terminal, and the negative wire should be connected to the negative terminal.

03/

Mount the Driver
Secure the LED driver in the desired location using screws or other mounting hardware.

04/

Turn on the Power
After completing the installation, turn on the power to the lighting system and test the LED driver to ensure it is functioning correctly.

05/

Verify Compatibility
Verify that the LED driver is compatible with the LED lighting system by checking the voltage and current requirements of both components.

06/

Seek Professional Help
If you are unsure about any aspect of the installation process, or if you encounter any issues during the installation, seek professional help from a qualified electrician or technician.

 

Certifications

 

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Our Factory

 

We are a LED drive manufacturer headquartered in Shenzhen city, China. We have set up a branch in Taiwan, and possess a 4000 square meters factory.

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FAQ
 

Q: How to repair an LED light driver?

A: Disconnect the power. Open the driver with a screwdriver and check carefully for visible faults and any burn marks. Use electrical testing equipment to identify the faulty components. Replace these components if possible and test the unit. If it is not possible to do so, the entire driver will require replacement.

Q: What happens when an LED driver fails?

A: When an LED driver fails, a few things can happen. It can cause the LEDs to flicker or not turn on at all. In addition, if something goes wrong with your power supply, it can cause flicker even after you turn the power off.

Q: How to understand LED drivers?

A: LED drivers are the power supply unit, regulating current and voltage to ensure optimal performance and longevity; without them, the lighting unit may not function correctly or experience premature failure without proper drivers.

Q: What causes an LED driver to burn out?

A: LED drivers can fail due to two major causes: Over-driving and under-driving. Over-driving occurs when a malfunctioning driver delivers current to your LED light or LED array that is too high. Under-driving means the current is too low. Either over-driving or under-driving means that your LED driver has become faulty.

Q: What is the LED driver's life expectancy?

A: The life expectancy of an LED driver varies depending on various factors such as the quality of the driver, operating conditions, and environmental factors. Generally, LED drivers are designed to have a long lifespan to match the long life of LED lighting. The average life expectancy of a high-quality LED driver is typically around 50,000 to 100,000 hours of continuous operation. This can translate to approximately 5 to 10 years of usage under normal conditions. However, it's important to note that this is an estimate, and the actual lifespan can be influenced by factors such as ambient temperature, electrical load, voltage fluctuations, and overall product quality.

Q: Is the linear LED driver expensive?

A: The cost of linear LED drivers varies depending on the type, size and complexity of the driver. For example, a basic linear LED driver might be cheaper than an advanced one with more features. Generally speaking, however, linear LED drivers are not particularly expensive when compared to other types of lighting solutions.

Q: What is an linear LED driver IC?

A: A linear LED driver IC is an integrated circuit designed to regulate and control the power output of an LED or group of LEDs. It provides efficient, constant current regulation for the LED, which helps reduce energy consumption. The IC also ensures that the LED does not burn out due to overheating or over-voltage conditions. The IC typically includes a voltage regulator, current limiter and other protection features.

Q: What is a linear LED driver?

A: A linear LED driver is a linear regulator that often exists in packaged integrated circuits (ICs) that only needs a rectified voltage source, e.g., a bridge rectifier to rectify an alternating current (AC) voltage to generate a driving voltage. Owing to their small size and low cost, simple linear driver circuits have generated extensive interest in the field of LED lighting.

Q: What is the difference between led driver and electronic transformers?

A: The difference between them is mainly in the way they work. The LED driver power supply is a converter that converts the power supply into a specific voltage and current to drive the LED to emit light, allowing dimming to change the brightness. The electronic transformer is to rectify the alternating current into direct current, and then use electronic components to form a high-frequency oscillator to convert the direct current into high-frequency alternating current. In simple terms, the fundamental difference between them is that the output of the electronic transformer is AC, while the output of the LED driver power supply is DC.

Q: Do LEDs always require a driver circuit?

A: LEDs require a constant DC supply of 12v or 24v, which is much lower than the mains power supply voltage, so in general, LED lights need an LED driver to convert the power supply into a more suitable one. However, some low-power LEDs can be powered directly from a voltage source, such as a battery or power supply, without the need for a driver circuit. These types of LEDs are typically used for simple applications such as indicator lights and do not require the same level of control or protection as higher-power LEDs.

Q: What is the power factor of LED drive?

A: Power Factor is a measure of how efficient an LED Driver is regarding electricity consumption and output. The higher the power factor, the more efficient the device is. Power factors greater than 0.9 are considered optimal for operation.

Q: What is the basic of LED driver?

A: The LED drivers provide protection to the LED bulbs against current and voltage fluctuations. The drivers ensure that the voltage and current to the LED bulbs remains within the operating range of the LEDs regardless of fluctuations in the mains supply.

Q: What are the two main types of LED drivers?

A: There are two types of LED drivers: Constant Current LED drivers and Constant Voltage LED drivers.

Q: What is the difference between linear and switching LED drivers?

A: Overall, switching power supplies is generally the better choice for most applications due to their higher efficiency, their smaller size, and lower cost for high-power applications. However, for low-power applications that require low noise and high precision, a linear power supply may be the better choice.

Q: How does a linear LED driver differ from other types of LED drivers?

A: Linear LED drivers are simple and cost-effective, but they are less efficient than other types of LED drivers. This is because the linear regulator dissipates excess voltage as heat, leading to lower efficiency and higher power dissipation.

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LD series

LD40D2C-421000AZ

Performance

Model

LD40D2C-421000AZ

Input

Efficiency

87%@220Vac full load

Voltage

120-277Vac(standard)

120-347Vac(optional)

Frequency Range(Hz)

50/60Hz

Power Factor

≥ 0.9@347Vac full load

THD(full load)

<10%@120Vac full load

AC Current(max)

0.65A@120Vac full load

Standby Power

<1W

Inrush Current

(cold engine start)Max

20A@120Vac

28A@277Vac

30A@347Vac

Leakage Current (max)

55W

Output

Current(mA)/Voltage (VDC)

Power(W)

30-42Vdc/1000mA/42W

Current Ripple

<10%

Channel

Dual output

Linear Regulation

±5%

No-load Output Voltage

<60V

Start Time

<0.5S@347V <1S@120V

Auxiliary Voltage

12V/100mA

Function

Dimming Method

0-10V 0.5V OFF /0.7V OPEN

Dimming Current

<1mA@10V <2mA@0.7V

Dimming Range

1%-100% (standard)

10%-100%(optional)

Power

5 adjustable

Color Temperature

5 adjustable (optional)

stepless dimming (standard)

Protection

Over Temperature

When temperature is too high,shut down the output,

Recovers automatically

Over Load

Hiccup, when the output power exceeds ,then,recovers automatically after fault removed

Short Circuit

Close output,recovers automatically after fault removed

 

Physical

Length

280 mm

Width

28 mm

Height

21 mm

Mounting Length

261mm

Weight (g)

238g

 

Environmental

Safety Standard

Ul8750 ,Class2

EMC Emission

Meets Fcc Part 15

Operating Temperature

-20°C To 50°C

Storage Temperature,Humidity

-20°C To 85°C,20-90%Rh

Case Temperature

Tc=90℃

Warranty Tc

85°C Max For 50k Hr Life

Surge Protection

L-N 1Kv , L/N-Fg 2Kv

IP Rating

IP20

Material

Iron Shell

 

Series Driver

Model

Max Power

Input Voltage

Output Voltage

Output Current

Power Factor

Power

Regulation

Color

temperature

Efficiency

LD40D2C-42XXXXYZ

40W

120-277/120-347Vac

24-42Vdc

1000mA

0.9

Adjustable

Adjustable

87%

LD60D2C-42XXXXYZ

55W

120-277/120-347Vac

24-42Vdc

1350mA

0.9

Adjustable

Adjustable

88%

LD80D2C-42XXXXYZ

75W

120-277/120-347Vac

30-42Vdc

1800mA

0.9

Adjustable

Adjustable

86%

 

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