Sold as used, 50 peace l.e.ds. Close to 12 feet long it is possible to be longer if stretched. This listing is only for the lights no power, no Control Box there sold separate.

ALITOVE WS2811 Addressable LED Pixel Light 50pcs 5V 12MM Digital Dream Color Diffused RGB LED Pixels Module Round Black Wire IP68 Waterproof

【Individually addressable LED 】 This is digitally-addressable WS2811 LED pixel string lights. Per string has 50pcs F8 RGB LED chips and WS2811 smart IC. You can set the color of each LED and their brightness individually! 256-level brightness and 24-bit color display, achieve 16777216 colors full color display.
【IP68 waterproof and Durable】 We sealed all the components in a housing with silicone, making its waterproof grade reach IP68. The wires are made of cold-resistant, UV-resistant rubber. Superior materials and design enables it to withstand extreme bad weather such as snowstorm, rainstorm, etc, suitable for long-term outdoor and underwater use.
【Easily connect and cut】 It comes with 3pin JST-SM connectors and separate power/ground wires on both ends. You can hook up multiple strips together to make it longer and inject power in case of voltage drops. Each pixel can be cut off. So you can shorten or extend the distance, great for DIY lighting projects.(Please note that JST connectors are not waterproof)
【Compatible with many controllers】 It can be programmed with Arduino, Raspberry Pi, T1000S, K1000C controllers and controlled by ALT-C01, SP105E Bluetooth controllers, SP107E SP601E SP602E P608E SP611E SP110E Bluetooth music controllers, SP108E WiFi controllers, SP103E mini RF controllers and any other WS2811 SPI controllers.
【Wide Application】 Thanks to the excellent waterproof design, it is widely used in various indoor and outdoor commercial lighting decoration projects, such as outdoor billboards, LED screens, LED wall, hotel, KTV, bars, city skyline, building outline decoration and so on.