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BackHttps://optoelectronics.liteon.com/upload/download/DS22-2008-0044/LTST-C19HE1WT.pdf LED RGB NeoPixel PLCC-4 5050 5.0mm x 5.0mm Addressable RGB LED NeoPixel Nano, 12 mA, https://cdn-shop.adafruit.com/product-files/4684/4684_WS2812B-2020_V1.3_EN.pdf LED RGB Wurth PLCC-4 LED RGB.
- 4.864427e+000 2.480400e+001 facet normal 0.703592.
- Normal 0.247224 -0.963862 0.099246 facet normal -5.035336e-001.