Simple 20 LED Vu Meter Using LM3915 : 6 Steps - Instructables
Dream Colour 12V WS2811 RGBIC LED Strip 20Pixels/m Colour Change WiFi App Control Waterproof Full Kit Programming 5m/10m/15m/20m/25m - Smart Light Max
20-Pack Pre-Drilled Countersunk Hole 3.3FT/1 Meter LED Strip U Channel Diffuser, Hacksaw Easy Cut Tight and Flush Mounted Under Cabinet Tape Light Aluminum Low Profile with Screw and End caps (20) -
Music Spectrum Analyzer, RGB Led Light Decor, Sound Spectrum Visualization, Gaming Decor, Musician Decor, Equalizer, Musical Lamp, VU Meter - Etsy
Flexible RGBW LED Strip (NeoPixel/WS2812/SK6812 compatible) - 144 LED/Metre | The Pi Hut
Adafruit DotStar Digital LED Strip - White 144 LED/m - One Meter [WHITE] : ID 2242 : $49.95 : Adafruit Industries, Unique & fun DIY electronics and kits