LED Power supply

What is an LED driver used for?

To recap, LED drivers to convert higher voltage, rotating current to low voltage, direct current. They also maintain the voltage and existing moving with an LED circuit at its rated level.

They are often used in small, handheld solar-powered devices. They are usually the driving source for the power supply used by battery-powered flashlight flashlights and so on. They are often used in high-power LED drivers for larger LED driving lights.

A typical output voltage and current

The light output per unit power is usually over 100 lumens per watt. For example, an LED driver may operate at 45V, 2A, 250mA, or 12V, 16A, 48A.

The measured efficiency usually is 95%, but some are much more efficient. Many variables affect the actual efficiency, yet the power variable typically is ~ 3%. Therefore, an LED driver is usually intended to replace a high-power LED.

A typical driver operates at 30V, 4A, 200mA, or 60V, 8A, 100mA.


The measured efficiency is 85%, but some are much more efficient. Many variables affect the real efficiency, but the power factor typically is ~10%. Therefore, an LED driver is usually intended to replace a high-power LED.

Some drivers above are rated for operation with a battery or a solar cell. For some, such as the 16A and 48A drivers, the battery or solar cell may operate with a variable voltage. These drivers will have a connector that directs electricity from the charger to the LED driver or the LED driver’s power supply when there is no battery or solar cell present.

Some drivers above are not designed to be portable. They may only be powered by a wall socket or a separate mains power supply. Most drivers are powered directly from the charger, from the 12V rail, or from both, depending on the drivers.


They are usually used in applications where a large current must be applied to many LEDs, for example, in outdoor security lights, which require the LEDs to operate for several hours under sustained high current. However, they are also used in other applications.

The current flowing through a low-power LED driver is usually in the order of several amps. They are normally designed to deliver 20A per hour, but they can provide more. The maximum total current flow is over 100A for up to 50W of driving LEDs.

The efficiency is usually very high, being in the high 80% range. If one driver is used as a reference, it can be calculated that the total current flowing is almost 100A. It can seem that a driver would require many drivers in the circuit. It is not a practical option to use one driver to supply the entire course with the current. This limits the maximum current ratings of all LED drivers.

A significant innovation for the LED light world is the high-power LED driver, with an output of 60A per LED, and rated for operations with 15A or 25A loads, without any need for separate power supplies. High power drivers are ideal for large applications when a driver with a variable power supply is used. These drivers can be powered by either a solar cell, a 12V rail, or a 20A power supply. They are available with many driver configurations. These are normally driven with a maximum of 50W of driving LEDs.

Driver Specifications

The following specification should be considered as the essential specification of a driver. These are an excellent guide to believe, but they can be changed if required. These include the driver’s maximum power rating, rated for LED operation, recommended driving times, and driving currents. A driver with a higher power rating means a greater LED output over a given driving current range. A driver rated for 50W can supply approximately 600W of current or about 50W per LED. So a driver that has a 50W power rating can be used to supply up to 20 LEDs of light.

* Maximum Power – should be sufficient for the application, with a minimum of 1.2 amps per LED or 6.5W per LED per minute, operating at temperatures between 50C and 95C.

* Power Rating – The maximum wattage rating, based on the maximum power rating, is generally required for safety and comparison.

* Rated Driving Time – The rated driving time, at the rated temperature range and driving current (15A max over 2A rails)

* Number of LEDs – can change the number of LEDs without the driver being unsuitable to a few LEDs. The number of LEDs should be reduced in applications where a significant portion of the current is used to drive a heat sink to 20W or less or to drive low-power LED arrays such as a single red LED.

* Drive Arcs – can change drive belts, and the driver rated to supply up to 60W of current can be used to supply 4 LEDs with 60 or 6 red LEDs.

Can be purchased Driver and LED ratings online from the manufacturer. Based on our own experience, technicians and experts in the field, such as lighting designers or other product specialists.


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More than 400+ different power supply variable.

5V power supply is widely used in LED display and some other conditions.

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400w power supply is a great choice for use in lights. It can provide enough power for all of your needs, and it is also very reliable.

Waterproof power supplies are available in a variety of sizes and styles, so you can choose one that best suits your needs.

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