Transformer led
This device converts alternating current into direct current. This very common current conversion module is a transformer designed to operate a 12-volt LED strip. The power supply for LED lighting equipment also goes by other names, such as LED transformer or LED driver transformer.
Operating principle and purpose
A LED panel transformer is used to connect a LED strip, a domestic lamp, to a standard power supply. Its main function is to transform 220 V alternating current into 12 V direct current. Assembled LED-based light sources have a different voltage indication from that of the domestic mains, which is 220 V. Therefore, for the LED module on a flexible printed circuit board, the lamp, to work, it needs to be connected directly to the mains via a transformer and a suitable power supply.
Why is the right choice of transformer important?
Choosing the right block is important. The power of the module must exceed the power of a domestic lamp or LED strip by at least 10-15%. This is to compensate for potential mains voltage and ensure uninterrupted mains operation.
How to choose a 12V LED transformer?
Correctly calculating transformer power is an important preparatory step. The phase determines the operation and running time of the LED strip or lamp. The example below illustrates the accuracy of these calculations.
An LED string transformer is to be installed on a SMD5050 LED strip with a length of 5 m and a power of 7.20 W per 1 linear meter. It is necessary to multiply the first two values to obtain the required power indicator, i.e. 36 W. Add at least 25% more power to the value for stable, high-quality module operation. Experts recommend adding the full 30%, giving a final value of 46.9 W.
BanqueDeLamps.fr's most popular items are the following products, featuring different voltages and wattages:
- iLight LED transformer CV 12V 1.67A ;
- iLight LED transformer DC 22-42V 700mA ;
- PHILIPS CertaDrive LED transformer 180W 24VDC ;
- PHILIPS CertaDrive LED transformer 120W 24VDC ;
- PHILIPS LED Controller 220-240V.
More detailed information is available on the wholesaler's website.
Basic selection options
Before buying the right device, you'll need to decide where the transformer will be installed. The industry offers several types of converters for operating diode circuits:
1. The leakage type seems to be the most common. The device is not resistant to humidity. The following qualities are considered advantages:
- the cheapest option available ;
- long service life thanks to the absence of overheating.
The disadvantage is that it can only be used in a dry room.
2. Sealed in an aluminum shell, it offers better functionality than a plastic housing, which tends to overheat. The disadvantages are severe overheating and a high price, and the plastic shell considerably reduces the device's power.
3. Semi-hermetic with built-in internal fan. Has enhanced protection against humidity.
Noisy operation and increased module size are the main drawbacks of the LED transformer.
Compatible with various LED devices
The LED electronic transformer is fully compatible with all solid-state devices that convert electric current into light radiation. Of course, you'll need to take into account the device's 12 V operating voltage and wattage.
But do you need a transformer for your LED spotlight? The answer is clear: you need a LED spotlight transformer, a special lighting device that uses high-brightness LED crystals to generate a uniform luminous flux.
Installing and using LED transformers
The electronic transformer is a source of increased danger, as it is the first to be connected to the electrical network. Therefore, before installing a 12V LED transformer, you must ensure that the mains supply is switched off.
Safe installation instructions
Safe installation of the device involves the following process:
- remove the LED 12V transformer from the packaging, perform a cursory inspection, check the integrity of the product ;
- find a stable surface on which to install the device;
- connect the lamp wires;
- insert the plug of the electronic module into a domestic socket.
The first lamp must be at least 20 m from the LED transformer.
Tips for use and maintenance
The experts provide recommendations for the proper operation of the device:
- it is not recommended to install the LED electronic transformer in areas without access to circulating air, near curtains or flammable objects;
- it is essential not to cover the module with cloth, paper or any other object.
The electronic transformer must be installed in a room in accordance with the specified humidity level.
Advantages of using a transformer
Electronic transformers offer a range of significant advantages over conventional lighting devices.
Energy efficiency and durability
An LED lighting transformer is characterized by high energy efficiency. The device is designed for LED chips that convert the electricity they consume into light radiation, but not heat. This feature reduces energy consumption and operating costs. Solid-state devices have a much longer life than traditional systems. This type of transformer is rated for 50,000 hours of operation.
How transformers improve LED lighting performance
An LED slab transformer protects LED strips and lamps from overheating and overvoltage on domestic power grids. Choosing the right transformer and calculating the correct wattage ensures the guaranteed operating life of LED strips.