It is generally used when wiring, indicating what color wire is connected.
for example
G\/ Green B\/ Blue W\/ white Y\/ yellow
other matters needing attention
R\/ Red Y\/ yellow resistance with 511, that is, 510 ohms, G\/ green B\/ blue W\/ white resistance with 271, that is, 270 ohms, because the red and yellow light conduction voltage is reduced, normal luminous pressure drop of about 1.8v-2.2v per, so the resistance value is large, and the normal luminous pressure drop of green, white and blue is about 3.0v. Try using dc12V first, if not bright or low brightness use 24v
W is short for the white line write, and Y is short for the yellow line.
LED lamp is an electroluminescent semiconductor material chip, solidified to the bracket with silver glue or white glue, and then connected to the chip and circuit board with silver or gold wire, sealed around with epoxy resin to protect the internal core wire, and finally installed the shell, so the LED lamp has good seismic performance.