http://www.greeled.net/ws2811-programmable-mini-rgb-string.html
working Voltage: 5V DC
Power Consumption: 0.24W/Pcs
IC type: WS2811 chip built in
Waterpoof Type: IP67
Punch holes size: Diamter 9MM
Size of LED light: 5MM
Material of crust: Clarity PVC
Connect 50pcs each strand
RGB Pixels are digitally-controllable lights you can set to any color, or animate. Each RGB LED and controller chip is molded into a 'dot' of silicone. The dots are waterproof and rugged. There are four flanges molded in so that you can 'push' them into a 9mm drill hole in any material up to 1.5mm/0.06" thick. They're typically used to make outdoor signs.
Sold by the strand, each strand has 50 pixels in series!The pixels are connected by a 3-conductor cable. +5V, ground, data . Data is shifted down from one pixel to the next so that you can easily cut the strand or attach more onto the end
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