Precautionsp: 1. Using voltage 5V DC. higher than 5V DC will destroy it. (power supply not include) 2. Do not bend strip sharply. Flexible PCBs are not designed for repeated flexing! 3. If you need better led strip performance, you can use a K-1000C controller or another programmable controller. 4. if choose only panel, not have controller; if choose kit, have controller and panel. WS2812B Panel Product Voltage: DC5V IC: WS2812B FPCB colors: black Plate: soft copper Light source: SMD 5050 RGB Working Life: >50,000 hours Beam Angle: 120 LED Quantity: 16*16 8*32 256 Pixels/8*8 64Pixels Power: 64LEDs 19.2W/ 256LEDs 75W Emitting Color: Full color (24-bit) Gray level: 64/256 Waterproof: IP30 non- waterproof Working temperature: -20C~40C RF Music Controller Features:Batteries not included RF Remote control, long distance, mini size, wire connection is simple and very easy to use. Support almost every kind of one-wire or two-wire LED-DRIVER-IC. With 358 kinds of patterns,which are vivid and beautiful. With 12 music modes,which are vivid and beautiful. With user setting saving functionality. Brightness adjustable. Preventing reverse connection of power supply. Working voltage: DC5V Can control 500pixels Features 1) Individually Addressable Using a programmable controller and you can program every led just you like. Every one led has its own IC chip. One IC controll one led. The chip buil in led. 2) DIY (17keys music controller cannot be edited) If you have a programmable controller, you can DIY your own special effects 3) Bright Brightness can be adjusted freely. Do not stare at it for a long time, otherwise you will be dazzled when the led Brightness is the brightest. 4) Colorful Red, Green, Blue. Dream full color. curtain-up/ flow water/raindrop/jump flash and so on hundreds of lighting effect, you can also edit animation effect by Coreldraw/Flash/LedEdit software.