Calculate the power of the LED driver for the LED strip
Finally, we come to the actual topic of our article. You are looking for a LED strip on the Internet. You see that under the selected strip, it says: „The power consumption is 4.8 W/1 m”.
This means that the power consumption of this LED strip is 4.8 watts per running meter, so at two meters, it doubles to 9.6 W. You want to install 3 meters of such LED strip and power it. Then multiply 3 (3 meters of LED strip) by the power it consumes, which is 4.8.
This gives a total value of 14.4 W of power consumption on the full 3 meters.
The power supply should be at least 20% stronger than the power consumed by the purchased LED strip. Our strip consumes 14.4 W, and we add 20% to it, making about 17.5 W.
We need a power supply with a power of 18 W. An example of such a power supply is a product of the manufacturer Mean Well – LPH-18-12, for a strip with 12 V voltage. We hope that the presented article has brought you closer to the question of choosing the power supply for the LED strip.
Why is it worth calculating the power of the power supply?
The answer is simple: first, it is necessary to avoid a wrongly chosen power supply being replaced after a short time. To avoid further unnecessary costs and not be frustrated at the next essential replacement of a poorly matched LED power supply. Wrongly selected power supplies for LED strips are easily recognized by their function. How. Touch it. If you feel that it is boiling, the conclusion is one: it is too weak for the LED strip.
It would help replace it with another, i.e., more powerful.
When choosing a power supply for lighting, you should consider several technical parameters.
Input voltage of the LED power supply
The input voltage also should consider. It must be the same as the network to which we connect the power supply. In Poland, this voltage is 230V.
The output voltage of the LED power supply
The first one is the output voltage of the power supply. It must be the same voltage as that of the connected lighting. If we buy a LED strip with an operating voltage of 12DC, then the LED power supply must also have an output voltage of DC 12V. If we purchased a bulb / LED strip that operates at 230V, the power supply is unnecessary.
Selection of the suitable power supplies model
Selection of the suitable power supplies model for the LED Lighting project
We use a switching power supply with a minimum efficiency of 85% to supply LEDs without dimming. As a result, our power supply does not consume unnecessary electricity, positively affecting electricity bills. LED driver, LED Control Systems.
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