RGB LED Controller with 21-keys RF Remote Controller for WS2812B WS2811 LED Strip

1. Voltage: 5-24V2. Working current: about 30mA3. Working temperature: -20-60 Degrees Celsius4. Battery type: CR20255. 63 effects6. 1024 pixel control7. 21 key remote8. DC 5V-24V input, RF remote control, long distance, small size, simple wiring, easy to use, various patterns are vivid and lifelike, brightness is adjustable, each controller can control about 1024 pixels, and can be rearranged if necessary R / G / B keys to match your LED lights. Prevent reverse connection of power supply. Protect lights and controllers. Automatically save user settings when shutting down.