WS2812B 8x32 Addressable Flexible LED Matrix SMD white LED They're also used as safety

They're also used as safety switches

Material Brass

Voltage 220-240V AC Detection Range 360° Detection Distance 1-8m Power frequency 50/60Hz Ambient Light 3~2000 LUX Time Delay Min

Single-Stage Power Factor Correction Power Supply for LED Lighting

This is a high-quality SMD LED

WS2812B 8x32 Addressable Flexible LED Matrix SMD white LED They're also used as safetyWS2812B is an intelligent control LED light source where the control circuit and RGB chip are integrated into a single package of 5050 components. Each LED can be individually controlled. You may programme each LED to scroll messages or draw little graphics. WS2812B 16x16 Addressable Flexible LED Matrix is widely compatible. It can be controlled with Arduino, Raspberry Pi Fastled Library, Adafruit Neopixel, Rainbowduino, SP103E, SP105E, K1000C,