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Please master me to make a plaque, with 7000 LEDs in thousands of red, 1 1000 blue, 1 1000 white), all of which are always on. How to connect them? What power supply is used?

In parallel, run the wires side by side on the board, and fix the two pins of the lamp at the required positions respectively (positive and negative cannot be wrong).

Power supply 5V * 8mA * 7000/ 0.8

This power depends on the voltage and current of your LED. Usually 3.3V- 12V, 5mA- 15mA.

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