Do all LED lights need a driver?

LED lights require a unique device called an LED driver to switch on as well as run. An LED driver is an electrical gadget that manages the result of an LED light. The genuine solution is that all LEDs utilize chauffeurs to do a number of the very same things as ballasts.

What is the LED driver?

An LED driver is the main objective of correcting high voltage alternating present and low voltage straight current. A continual present LED chauffeur supplies constant present (50mA, 100mA, 175mA, 350mA, 525mA, 700mA or 1A) to a voltage -loaded LED component within a provided voltage range. The motorist supplies a single component with LEDs attached in a collection or numerous LED components attached in parallel.

The LED driver’s unique tool refines a voltage and power line suitable for operating an LED luminaire. An LED motorist carries out a comparable function as ballast in fluorescent light. Continuous voltage motorists are found in commercial applications and architectural signs where numerous LED strips are connected to an LED strip, light strip, puck, or light.

The LED driver is the name of the power supply that powers LED strips and various other LED lighting products. We will reveal to you how to compute needed output power as well as pick the best-LED transformer. The power computation of the LED transformer is described thoroughly below.

How LED driver work?

Considering that LEDs operate at such a low voltage, they need special devices to power them. Collaborating with LEDs needs the conversion of Air Conditioning LEDs into DC LEDs, which assists in safeguarding them from voltage spikes that can occur and bring about overheating, which can be bothersome.

Motorists power LED luminaires in a feature comparable to ballast-powered fluorescent lights or transformers that power low-voltage light bulbs. Constant voltage vehicle drivers are readily available in a selection of wattages, and they have lowering capabilities. LEDs are used in LEDs alongside the driver in strips, such as LED accent illumination and landscape illumination, backlighting, advertising, signage, HD LED lighting, and display screens that get the same voltage from the driver.

Constant Current or Constant Voltage?

An electric circuit that manages the inbound power to provide a constant-voltage result has generally been referred to as a power supply. In contrast, an LED motorist in the rigorous feeling describes an electric circuit that supplies a consistent existing outcome. Today, “LED chauffeur” and “LED power supply” are highly uncertain terms used mutually. Despite the terminological uncertainty, we can’t neglect the inherent differences between the constant existing (CC) and consistent voltage (Curriculum Vitae) circuit schemes for LED load guidelines.

Constant current LED drivers to give a constant present (e.g., 50mA, 100mA, 175mA, 350mA, 525mA, 700mA, or 1A), regardless of the voltage load LED component within a specific voltage variety. The driver might power a solitary component with LEDs attached in series or numerous LED components connected in parallel. Collection link is liked in CC circuit architectures since it ensures all the LEDs have the same current streaming throughout their semiconductor junctions. The light output is consistent throughout the LEDs. Driving multiple LED modules in parallel requires a resistor in each LED module, bringing about decreased efficiency and poor present matching. Most CC motorists can be configured to operate over an existing output range for precise pairing between the driver and a certain LED module.

Consistent present LED motorists are utilized when light output needs to be independent of the input voltage change. They are located in several kinds of basic illumination products, such as downlights, troffers, table/floor lamps, street lights, and high bay lights, for which high present top quality and specific result control are the top priority. CC chauffeurs support both pulse-width modulation (PWM) and also constant-current reduction (CCR) dimming. Operating a power supply in a CC mode usually requires overvoltage protection just in case too much load resistance is experienced or when the lots are separated.

Consistent voltage LED drivers are created to operate LED components at a fixed voltage, commonly 12V or 24V. Each LED module has its own linear or changing existing regulator to restrict the present to maintain a consistent result. It is generally preferred to offer a constant voltage supply to several LED modules or fixtures connected in parallel. The maximum number of LEDs or LED components and the forward voltages throughout them cannot surpass the DC electric energy power supply. The Curriculum Vitae circuit has to endure the power dissipation when the tons goes short circuit. The current limiters usually have a thermal shutdown to protect the course when a voltage is more excellent than the maximum allowable voltage throughout the current limiter. Curriculum Vitae motorists are commonly utilized in reduced voltage LED lights applications requiring ease of team connection in parallel control, e.g., driving LED strip lights and LED indication components for lightboxes. Constant voltage motorists can only be PWM dimmed.

Power level

When choosing a constant-voltage power supply, you should figure out how many watts your light eats. If your project requires more than one light, you need to determine the total watts used. See to it to have a substantial sufficient power supply to deal with the power level of all of your consolidated lights. You will certainly require to pick a power supply that is rated at least 20 percent above the total wattage of your illumination system to make sure that you do not overwork the power supply. A simple method to calculate this is to increase the overall wattage of your lighting by 1.2. For example, if you have five LED course lights that consume 4 watts each, the wattage of your incorporated light is 20. Just increase 20 watts by 1.2 (20 x 1.2 = 24) to figure out which power supply you’ll need. A 24-watt (or higher) power supply will work!


Suppose you’re developing an LED fixture or changing a constant-current vehicle driver. It is necessary to verify that the output present and voltage of the chauffeur are compatible with the LEDs’ current and voltage. If your LED product needs a constant-voltage power supply or constant-current motorist, check the item’s requirements for its operating needs and ensure that it is compatible with the specs of the power supply or driver. Likewise, ensure that the power supply or chauffeur’s input voltage matches that of the location will indeed install it. Suppose you have an LED product with a 12-volt DC operation that you wish to make use of in a 120-volt A/C residence circuitry system. In that case, you’ll require a power supply that consists of 120 volts in its input variety as well as has a 12-volt DC outcome. A 24-volt DC power supply would not be appropriate because its result voltage isn’t suitable with the product’s voltage.

When selecting a constant-current driver for an LED project, ensure that the LEDs’ present and voltage demands are met. If LEDs remain in an identical configuration, include all current worths while keeping the voltage range consistent. However, if LEDs are used in a series, including all voltage values, stay present as a private LED.


LED motorists to enable your LED lights to attain dimming and also color series features. Depending upon the vehicle driver type you use, they can lower your LED light from 0 to 100 percent, with smaller-sized dimming varieties in between.

Both will outfit their particular luminaires with the appropriate power to operate appropriately and also accurately. And can do just about anything else when they are supplied and used with their respective light.

As we have already mentioned, the very best thing about LEDs is that they are power efficient and also do not call for much power to obtain them going. However, the current commercial frequency power products and conventional battery power supplies are not appropriate for supplying LEDs. The offered power supply is a high voltage (120-277 volts A/C), and the power motorist need to convert high voltage rotating current into low voltage straight current.

LEDs work with straight existing at low voltages such as 12V, 24V, and more. The LEDs function best with linear current, i.e., Low voltage (12V to 24V).

What information is required to change an LED driver?

If you have a defective motorist, right here’s what you require to understand about the wrong LED driver:

What type of component is the vehicle driver you are changing? While you do not always require the exact measurements of the motorist, it is essential to know the kind of fixture the vehicle driver was mounted in. Vehicle drivers utilized in exterior luminaires, direct luminaires, track luminaires, and indicator luminaires usually are the same dimension and kind element. Measure inside the luminaire to see what the maximum size of the substitute motorist may be.

Is the motorist constant voltage or constant current?

As pointed out previously, continuous voltage motorists are most frequently used in outdoor luminaires and indication lighting. Constant present drivers can be discovered in everything from outdoor luminaires to the basic inside and architectural lights. If you’re unsure, bear in mind that Continuous Existing defines voltage as a variety (e.g., 14-30 V) and a particular result current. Consistent Voltage chauffeurs define a specific voltage, such as 12V or 24V.

What are the output specifications? The three specs you need to take note of are the voltage range (V), maximum power (W), and existing (mA). The output voltage describes the operable voltage range of the LED vehicle driver. This can be specified as the maximum voltage. The optimal power (W) refers to the available wattage, not necessarily the energy consumed by the LED modules in the device. When taking a look at current (mA), see to it the mA value of the LED motorist amounts to or as much as 10% less than the mA worth of the device/LED module. If the value is lower, there is a threat that the light strength of the device will be significantly different.

Are there any control requirements? Numerous LED motorists are equipped with a 0-10V dimming function. Note that an LED dimming vehicle driver can always be utilized in non-dimmable applications.

How to select the right LED Power supply


In any way, LED transformers are of the continuous voltage type, which implies that they are not flexible and need always to be kept at the DC voltage of the item. This does not suggest that our lighting items are not dimmable. It just indicates that the power supply can not be lowered, and lowering can just be accomplished with PWM dimmers, which are readily available in a wide array on our LED Lights Controls category page. We sell 5 VDC, 12 VDC, and 24 VDC power products. We bring a small number of LED components that require 5 VDC, every one of our LED strip illuminations in addition to the majority of our LED modules require 12 VDC as well as several of our brand-new 24 VDC strip light, and all of our wall surface clean LED products to call for 24 VDC.


Determine your complete illumination length. After determining the voltage of the LED products to be used, the overall range of the job has to be calculated. Be as precise as possible during the installation procedure to prevent any issues.


Locate the power level of the product. On each of our item web pages, you will undoubtedly find a spec sheet that lists the DC voltage of the item and the power level required for the product to work correctly. LED module specs are noted by module, LED strip lighting is listed by watts per foot, and the article provides all other items. If you recognize the amperage and voltage of the thing, you can multiply both to calculate the electrical power.

Do the math The following action in determining the suitable converter to utilize is some simple reproduction and addition. When you know the size or quantity of the item, you will certainly be using it. Multiply that variable by the item wattage spec and after that, add 10-15% to prevent overdriving the power supply. When you have established this number, you can choose from any power supply that is larger than that variable. Note: It is not feasible to drive the power supply.


As soon as you have established the adequate electrical power, you will need for your LED lights. You can then consider what sort of power supply you want to utilize. Below is a listing of the different kinds of power supplies we offer.

We have a range of electrical outlet transformers in 12 VDC and 24 VDC for interior use. Our wall plug power supplies range from 12W to 60W, making them fantastic for small projects. An additional advantage of these power materials is that they are easy to use. Connect them right into an existing 100-240 VAC electrical outlet and also attach them to your grayscale LED lights or LED light assemblies utilizing any one of our barrel connector products.

Waterproof Power Supply

Our waterproof power products would be ideal if you have an exterior work or installation power supply in a place exposed to dust and moisture. All waterproof power materials are IP 66 or IP 67 exterior ranked. Keep in mind: These power products are not UV secured, nor are they completely submersible – Power Core Modern technology power products.


Ena Leung

Ena Leung


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