Check the listing for details. DC5-24V 21 Key RF Remote Controller WS2811 WS2812B LED Dream Color Strip Light. Condition: New. Listed at 8.00 USD. Up for sale is DC5-24V 21 Key RF Remote Controller WS2811 WS2812B LED Dream Color Strip Light This is brand new in the package WS2812B WSB2811 DC5-12V 14keys-Lock Wireless RF Led RGB Controller 366 Kinds of Changes Digital Color LED Light Pixel Strip modules Description: Prevent reverse connection of power supply. Protect lamp and controller. Save user setting automatically when power off. Come with 3pin JST connector and DC female connector, which will make it easy to install. Support setting controlled pixels number. Control up to 2048 pixels. R/G/B keys can be reordered to match with your LED light if needed. With 366 kinds of color change modes, which are vivid and beautiful. Brightness is adjustable. Prevent reverse connection of power supply. Protect lamp and controller. Save user setting automatically when power off. 12V DC input; RF Remote Control; Long distance; Mini size. Convenient to use Package includes: 1x RF Led RGB Controller Powered by SixBit's eCommerce Solution