64pixels 16*16cm ws2812b flexible led matrix unit

By Greeled Electronic Ltd
http://www.gree-leds.com/productshow.asp?ArticleID=Z54SX8ZZXX
This is a easy 8Pixel*8pixel DIY digital led matrix unit,designing with slide fastener, they locate at four edge of led martrix. You can pull the edge'slide fastener to enlarge led matrix at four direction. Example: you can use 2pcs led matrix unit to make a 8pixel*16 pixel led matrix. or use 4pcs led matrix unit make a 8pixel*32pixel led matrix. and stick gelatin sponge at the back of units, you only need peel it to stick anywhere.
Technical Parameter:
Working Voltage: DC5V 
Size: 16cm(6.3")*16cm(6.3")*0.5cm(0.2")
LED QTY: 64 Pcs (8Pixel*8Pixel) 
Pitch distance: 2cm(0.794")
IC Type: WS2812B Chip built in SMD5050
PCB materil: FPC 
Waterproof: Non-waterproof
Emiting color: RGB, Input Signal: SPI/TTL signal
Power: Max 20 Watt 
G.W: 80g/pc (Non-waterproof)
Datasheet:
https://drive.google.com/file/d/0B97rs4obIwdZSVI3Sm16S2tWMFk/view?usp=sharing