Adafruit NeoPixel Digital RGBW LED Strip - White PCB 60 LED/m : ID 2842 : $107.80 : Adafruit Industries, Unique & fun DIY electronics and kits
StudioPro Digital Knob RGBW LED Controller
SK6812 Digital RGB LED Strip | m5stack-store
Color LED strip - RGBW - neutral
ILC LED Color Changing Light Bulb, 120 Colors, 5700K Daylight White, 70 Watt Equivalent with Remote Control RGBW RGB Daylight and White – Timing Function - A19 E26 Edison Screw (2 Pack) - Amazon.com