Note: 1.WS2812B Must quipped with DC5V Power Supply AND Led Controller . 2.Every 0.5 meter have solder joints. IP30: Non- waterproof IP65: Waterproof in Silicon Coating IP67: Waterproof in SiliconTube The length of LED strip can be customized. Features: Input voltage:DC 5V Power: 30LEDS/M----9watt/meter 60LEDS/M----18watt/meter 144LEDS/M----43.2watt/Meter FPCB Width: 30LEDS/M----10mm 60LEDS/M----10mm 144LEDS/M----12mm LED resource:WS2812B led(5050 SMD RGB LED with built-in improved version of ws2811 ic) LED:each LED can be controlled individually. IC Type: improved version ws2812 IC(built inside the 5050 SMD RGB led) FPC Color: BLACK/White Colors:Full color RGB, dream color changing Package:in anti-static bag,IP30 IP65 with 3M adhensive tape on the back (IP67 without 3M adhensive) each strip with one free male connector for connector.