SK6812 RGBW 60LEDS/M DC12V 10MM-Wide Digital Intelligent Addressable LED Strip Lights - 5m/16.4ft per roll [SK6812-RGBW-60W10-12V] - $39.98 :
RGB LED LIGHT CONTROLLER, RGBW with remote control 4 channels x 4A Total 16 Amps for RGB and RGBW LED Light Strips and modules compatible with 5v 12v 24v power Supply LED
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Adafruit Mini Skinny NeoPixel RGBW LED Strip - Cool White 6500K [60 LEDs/m - 1m long] : ID 4914 : $21.95 : Adafruit Industries, Unique & fun DIY electronics and kits
CHANZON 10 pcs High Power Led Chip 4W RGBW 8 pins (300mA - 350mA for Each Color
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Amazon.com: ATCD 144W RGBW LED Wall Washer Light, Color Changing, Linear Light Bar with RF Remote Controller, 120V, IP65 Waterproof, 3.2ft/40inches Length, LED RGB Light Birthday Party, Carnival : Tools & Home
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IP65 RGB+White Switchable LED strip light | RGB and White in one strip