my ribbon project led sensitive to musical rhythm I have led ribbon ws2812b 5M RGB 5v 3A power supply: is it enough? If not, can you point me to a suitable one?
Have You checked with the data sheets, how much current each LED uses?
Number of LEDs per meter * 5 * LED current is the total.
A copy: Please note these WS2812B RGB LED STRIP 60/M 5VDC IP65 are sold per meter. Each WS2812 LED with all three colors at full brightness will use 60mA. A meter length will thus be 60 x 60 = 3600mA or 3.6A.
A 3 Amp power supply will manage 0.8 meter of LED strip, all LEDs at full power.