DIY Pixel led square ceiling panel ws2811

DIY Pixel led square panel size: 45cmX45cm(LXW) unit:cm LED Type:ws2811  RGB Pixel led strip Dc12V  20pixels 60leds/m  nonwaterproof Ip20 9pcs  ws2811 pixel led strip inside ( 42cm long per strip) inside the white square covering. DC12V  52watt/pcs ws2811 IC chipset (SPI protocel) control :arduino ,raspberrypi,sd controller ,art net ,dmx ,,,ect Power :Dc12V Outout led power supply unit price about 18 per pcs  Video show  https://www.youtube.com/watch?v=PRjEtPM1nuc https://www.youtube.com/watch?v=U0jTcL3ZK8I