WS2811 strip light is an external IC programmable LED strip too with 3 pins with positive, negative and data line. Usually made to DC12v . ...
WS2812B LED strip light is a built-in IC digital LED tape light with 3 pins including positive , negative and data line. Voltage is DC5v input.
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intelligent control LED light source
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WS2812 is a intelligent control LED light source that the control circuit and RGB chip are integrated in a package of 5050 components. It internal include intelligent digital port data latch and signal reshaping amplif ication drive circuit. ... After transmission for each pixel\uff0cthe signal to reduce 24bit.