VISDOLL WS2801 Pixel Led String, 50Pcs WS2801 12mm Full Color Individually Addressable Digital RGB LED Rope Light DC 5V Non-waterproof Indivadually Addressable: ws2801 IC, 1 IC control 1 LED, each led can show its own color that can be individually control and set it to any color as you want. The brightness of the string light can be adjusted Easy to Program: It work great with Arduino, FastLED library, Adafruit NeoPixel Library and Raspberry Pi. The ws2801 pixel string light can achieve effects of full-color running water, chasing and scanning. Easy installation, Safe to use. The working voltage is 5V. extremely low heat. It is touchable and safe to children. Cutable: Each pixel can be cut off without damaging the rest pixels. So you can shorten or extend the distance between two pixels if you want. Punching diameter is 12mm. Widely used in LOGO, advertisement billboard, exposed luminous characters, painted screen, can replace the traditional neon signs.