关于可调光 COB LED 灯条

In modern lighting technology, LED strips are favored for their flexibility, energy efficiency, and variety of applications. Dimmable LED strip lights have revolutionized modern lighting solutions. Whether you’re looking to improve the ambiance of your home or design a professional workspace, understanding how dimmable LED strips work is essential to creating the ideal lighting environment.

As a high-end lighting product, dimmable COB LED strip lights are becoming a new favorite in the market. In this article, we will discuss dimmable COB LED strip lights in depth to help readers fully understand this lighting technology.

Can All COB LED Strip Lights Be Dimmable?

Almost all COB LED 灯条 on the market are dimmable. Of course, there are exceptions. To determine if a COB LED strip is dimmable, be sure to check the product description and specifications provided by the manufacturer. Dimmable COB LED strips are designed to adjust their brightness levels without affecting performance or causing flicker.

COB LED strip lights accomplish this through advanced circuitry, dimmable LED power supplies, and compatible LED dimmers. Understanding these components is key to choosing the right dimmable LED strip for your needs.

First, COB LED strip lights cannot be connected directly to line voltage (such as a 120-volt AC outlet). They also require a stabilized dimmable LED 电源 that converts the high AC voltage to a low 12V or 24V DC voltage.

Second, COB LED strip lights must also be connected to an LED dimmer to function properly. Whether a COB LED strip is dimmable depends on whether its power supply is dimmable or not, which also helps it to decipher the dimmer signal from the dimmer.

Finally, the brightness of any COB LED strip can be adjusted using the correct DC signal. However, if you also want to adjust the color, you will need an LED 灯条控制器.

What Are The Dimming Options for Dimmable COB LED Strip Lights?

The dimmable function means that users can adjust the brightness of the COB LED strip as needed, from dimmest to brightest steplessly. This function is usually realized by PWM (Pulse Width Modulation) or analog dimming technology, etc., which can meet the lighting needs in different scenarios.

PWM Dimming

PWM dimming controls the brightness of COB LEDs by adjusting the pulse width. The advantage of PWM dimming is that the dimming range is wide, and it can realize smooth adjustment from the very low brightness to the highest brightness, and there is almost no color shift, which can maintain excellent color consistency.

PWM dimming is a conventional dimming setting. This setting requires you to install a PWM DC dimmer between a standard power supply (not TRIAC) and the COB strip. This PWM dimmer has a dial or potentiometer to adjust the brightness of the COB strip.

The PWM DC dimmer has a simple circuit and is best suited for portable or small installations. It is also ideal for dimmers that do not need to be fixed to the wall. These PWM dimmers are simple and easy to assemble. In addition, they can be easily connected to COB LED strips and power supplies.

Traditional Wall Dimmer + TRIAC Dimmable Power Supply

Wall dimmers and TRIAC dimmable power supplies are also ideal. These traditional dimmer and TRIAC LED power supply options are elegant and durable for COB LED strip installations. They are also ideal for under-cabinet LED lighting needs.

Most wall-mounted LED dimmers tend to use TRIAC dimming signals. So you need to get the TRIAC LED power supply that is best suited for your COB LED strip dimming needs.

TRIAC dimming power supplies have a dual function that includes:

• It reduces and rectifies the high-voltage 120V AC signal into a low-voltage 12V or 24V DC signal, the latter being compatible with COB LED strips.

• It parses the TRIAC dimming signal generated by the wall LED dimmer. It then converts it to the corresponding light output of the COB LED strip.

The TRIAC dimmable power supply can be connected directly to the wall dimmer.The output of the TRIAC power supply is connected to the COB strip. These components will most likely not have any visible connectors or plugs. In addition, the COB LED strip should be located close to the LED power supply, which ensures that the voltage drop effect is mitigated.

0/1-10V 调光

0/1-10V dimming belongs to the voltage dimming method, through the controller output 0/1-10V DC voltage signal, to control the output current of the LED driver power supply, and then realize the adjustment of the COB LED strip brightness.

The standard 0/1-10V dimmer has two independent optical circuits. The first is a voltage circuit that helps disconnect or connect power to the LED lighting fixture. The second circuit is a low-voltage design that determines the dimming of the COB LED strip.

When the output voltage is 0V, the LED strip is off; the voltage is gradually increased to 10V, and the brightness of the COB LED strip is gradually increased. This dimming method is highly compatible and widely used in all kinds of lighting systems, and the signal transmission is relatively stable and not easy to be disturbed. However, due to the need for additional control lines to connect the dimmer and LED driver power supply, the wiring is relatively complex during installation.

RF Dimming

RF is Radio Frequency; RF dimming is wireless dimming control. RF dimming uses radio frequency signals to transmit dimming commands through the radio frequency remote control or smart devices (such as cell phones, tablets, etc.) to send out radio frequency signals containing dimming information. They can be used to wirelessly dim COB LED strips.

To realize RF dimming, you first need to calculate the total number of COB LED strips to be connected. Next, calculate the total power of these COB strips. If the total power is less than the power of the RF LED controller, only one controller is required. However, if the total power is higher, connect multiple controllers.

For larger projects, you can use a high-quality power repeater or power amplifier. This will help you dim the strip using only one RF controller. Please note that RF dimmers have an operating range of up to 20 meters. Therefore, a power repeater is essential when looking for a greater signal range.

There are several options for RF controllers. The user can choose from the following options:

• Single zone dimmer

• Handheld Remote Dimmer

• Wall-mounted controller

• Multi-zone dimmer

With a single zone dimmer, you cannot control each COB LED strip or section individually. As a result, all lights are dimmed at once. Alternatively, with a multi-zone controller, you can manage different COB strip lights or sections independently.

WiFi Dimming

WiFi dimming utilizes the existing WiFi network in the home or premises to achieve dimming control. Users can download the corresponding dimming app through cell phones, tablets, and other smart terminals, and under the same WiFi network environment, the smart terminal establishes a connection with the control module of the COB LED strip.

Most COB LED strip light enthusiasts like to use smartphones to control the brightness; WiFi controllers are ideal for this situation; they can let you control the brightness easily.

The significant advantage of WiFi dimming is that it utilizes the existing network infrastructure, eliminating the need to lay additional complex control wires or purchase a dedicated remote control. As long as there is a smart device and network coverage, users can control their lights anywhere, anytime.

However, WiFi dimming has its drawbacks, as WiFi networks may be affected by network congestion, unstable signals, and other factors. The dimming response speed may be delayed or even can’t be controlled properly when the network fails.

DALI 调光

DALI stands for Digital Addressable Lighting Interface. It is best suited for large projects where multiple COB LED strips need to be controlled. DALI systems allow you to manually turn lights on or off and control brightness. They can also be used to activate and run preset lighting programs.

Most offices, hotels and large stores tend to use DALI systems for dimming. However, it has recently become popular among homeowners as well. A DALI system should be installed in the right way for perfect results.

First, the DALI receiver needs to be connected between the COB LED strip and the LED transformer. Once setup is complete, connect all DALI receivers using the signal cables. Next, just connect them all to the DALI dimmer switch.

DMX Dimming

DMX or Digital Multiplex Control is designed to operate and connect incompatible dimming systems. It is a standard protocol for dimming that is widely used in professional fields such as stage lighting, landscape lighting, etc. A DMX dimming system mainly consists of a DMX controller, a signal amplifier, and a DMX receiver device (such as a driver connected to a COB LED strip).

The DMX LED strip controller can handle up to 512 channels. This is why it is called DMX512. Each DMX strip receiver channel is set with the aid of DIP switches. These switches are located on the side of the device with the help of nine binary switches. Using these switches, the user can set each channel to a maximum of 512.

DMX dimming is perfect for restaurants, homes, hotels, clubs, or any location of your choice.

Factors To Consider When Planning A Dimmable COB LED Strip Light Setup

Keep the following factors in mind when setting up a dimmable COB LED strip light system:

• Dimming Signal Compatibility: Ensure that your dimming method (whether TRIAC, 0-10V, or PWM) is compatible with your LED strip and power supply unit. Using an incompatible dimmer may cause flickering or even damage. Always verify compatibility before purchasing components.

• Dimmable Power Supplies: Invest in a high-quality dimmable power supply or driver. Dimmable LED drivers are essential for smooth dimming and consistent light output. Choosing a reliable power supply ensures safety and performance.

• Voltage Drop Management: COB LED strip brightness may dim over long distances due to voltage drops. To avoid this, use proper wiring setup and ensure the power supply unit can handle the required load current. This is especially important for installations spanning large areas.

• Color Temperature Control: Maintaining a consistent color temperature is critical to aesthetics. Modern dimmers and PWM dimmers are excellent at maintaining color accuracy. This is critical for environments where lighting plays an important role in visual appeal.

• Installation Environments: Consider the specific needs of your space (whether it’s an industrial space, office lighting, or a performance venue) and choose the right controls accordingly. Customizing the settings to your environment ensures the best results.

摘要

As an advanced lighting product, dimmable COB LED strip is widely used in home, commercial, industrial, and landscape lighting with its advantages of high luminous efficacy, uniformity, flexible dimming, and energy saving.

By understanding its various dimming methods, users can better select and use this LED lighting technology to enhance lighting effects and quality of life. In the future, with the continuous progress of technology and diversification of market demand, dimmable COB LED strips will continue to develop, bringing people a more intelligent, efficient, and personalized lighting experience.

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