BTF-LIGHTING 50x WS2812B Pre-soldered leds with Transparent wire 5V WS2812 IC Built-in & 10cm Cable Addressable Idividually LED Module String Panel WS2812B LED With Heatsink Pre-soldered 10cm wire Full-color module, Full color soft lights a lamp strip. Addressable Individual ws2812b leds Used for lighting decoration in shopping malls, home decoration, cove lighting, lighting box, signage lighting, backlighting & channel lighting, etc.