5 volt SMPS for 300 Pixel led

To power 300 pixels of LED strip, you will need a 5V SMPS (Switch Mode Power Supply) that can deliver enough current to drive the LEDs. The amount of current needed depends on the type and specifications of the LED strip you are using.

Assuming you are using a standard WS2812B addressable LED strip with 60 LEDs per meter, each LED requires approximately 60 mA at full brightness, which means 300 LEDs will require a total current of 18 amps (60mA x 300).

To choose the appropriate SMPS, you will need to ensure it can deliver a current of at least 18 amps at 5V. It’s important to choose a reliable and high-quality SMPS that can provide stable and consistent power to prevent damage to the LED strip.

It’s also a good idea to add a capacitor at the input of the LED strip to reduce the risk of voltage spikes and ensure stable power delivery. The size of the capacitor will depend on the specific requirements of the LED strip and should be chosen accordingly.

In summary, to power 300 pixels of LED strip, you will need a 5V SMPS that can deliver at least 18 amps of current, and a capacitor to ensure stable power delivery.