WS2812B LED Neo Pixel PCB

By GREELED ELECTRONIC LTD
http://www.gree-leds.com/productshow.asp?ArticleID=P789ZX5TZT
WS2812B LED NeoPixel PCB
Working Voltage: 5.0V 
LED Type: WS2812B Chip-built-in SMD5050
Size: 10mm*3mm
Output power: 0.3W /pc
Viewing angle: 120 degree
Current 20ma per color, 60mA total at full brigtness
Wavelength 620-625 Red / Green 522-525 / Blue 465-467 (nm)
Brightness red 390-420 / 660-720 Green / Blue 180-200 (mcd)
Compatible with ws2811 library.
The led specification link:
 http://www.gree-leds.com/productshow.asp?ArticleID=073U971X30