Hello, I bought led strip that I plan to connect to a power bank. The strip is rated at 5v and has 144 WS2812B leds. The both sides of the strip have 3 pin connectors and 2 wires for ground and power. The question is how do I wire it to a power source? I believe that 3 pin connector on other side is for extending the strip. But what about the power and ground. Do I need to connect both sides to the power source? Also does it need a controller to actually light up? This is the link to the ones I bought.
https://www.amazon.co.uk/gp/product/B075R8Q5BK/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1
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