WS2812B RGB LED Panel Screen Flexible Individually Addressable Full Color 5V
The different between the WS2812B and WS2812B-ECO. 9pcs Pure Gold Line, Copper Bracket (WS2812B). Red: 400-700mcd, Green: 1000-1500mcd, Blue: 200-400mcd (WS2812B). 36 Months (WS2812B), 18 Months (WS2812B-ECO).