How to choose an LED power supply

In MIJI led most led power supply are constant voltage power supplies, so you need some type of constant voltage power supply that can convert your AC household voltage down to a safe DC voltage. There are many things that factor into finding the right power supply for your needs. First, we should lock down the power we require from our power source.

Wattage of LED power supply

To get started, find out how many watts your light will consume. If you hope to run more than one light off one power supply, you must sum the wattages up to find the total watts used. Make sure to have a large enough power supply by giving yourself a 20% cushion over the total wattage you calculate from your LEDs. This can easily be done by multiplying your total wattage by 1.2 and then finding a power supply rated for that wattage or use 80% load of power supply to fit your led lights.

For example, we have 4 runs of LED strips that run at about 12 watts each. Simply multiplying these will show that our system wattage should be right around 48 Watts. Now we can add the 20% recommended cushion on with 48 x 1.2 = 57.6 Watts. A 60-Watt (or higher) power supply will suffice for this project. Or 60w power supply 80% load its 48w, so you can choose 60w to load your led strip.

Voltage/Current of LED power supply

When building an LED fixture or replacing a bad power supply, it is important to first verify that the output voltage is compatible with the LEDs voltage. LED products with built in current regulators will usually be pretty good about specifying what input voltage should be used. For instance, a 12V power supply would be used with our LED flex strips as that is what they require.

There are several output voltages for your selection, 5V 12V 24V 30V 36V etc.

Also, be sure to make sure the power supply you select can handle the input power you have. Line voltage will change depending where you are in the world. Make sure you know whether you have low-line AC power (90-120VAC) or high-line AC power (200-240VAC). MIJI LED most are high-line AC power, as are selling to Asia and middle east country usually.

Efficiency of LED power supply

The efficiency of a power supply tells the amount of power that goes toward making the LED light up. The higher the efficiency percentage of the power supply-the more power you end up saving. For LED applications it is a good idea to select a power source with 80% efficiency or higher.

Size of LED power supply

When selecting a power supply for your LED project it is important to know where it needs to fit or be installed. If you wish to put it inside the product you are making, it must be small enough to fit in the space provided. If it is outside the application, it should have a way to mount close by. There are a variety of power supplies offered in different sizes and shapes to fit your needs.

For example, rainproof power supply is usually use at outdoor, and slim power supply have thickness 18*18mm, lighting box power supply only 20-22mm available, and home decor line lighting need ultra slim to hide in building.

Find MIJI LED Power Supply Best for You

In summary, I hope this information assists you in finding the perfect power supply for your LED lighting needs. Given the multitude of options available, take your time to find one that aligns with your requirements and meets necessary safety standards for long-lasting performance. If you’re in need of a starting point, I strongly recommend considering MIJI LED Power Supplies. Renowned for their quality and reliability, MIJI offers a diverse range of LED drivers and supplies, ensuring durability and backed by excellent warranties. Make a thoughtful choice that fits your specific situation for a reliable and efficient power supply for your LED lights.