One of the primary reasons an LED light may not work is a bad, faulty, or incorrect pin connection. The pins are designed to fuse into their ports when connected to enable the light to illuminate when necessary. If an LED strip light refuses to turn on, it is most likely that the pin is not connecting with the ports correctly. It is pretty rare to find out that an LED strip light’s pin is totally faulty or bad. In most cases, they are wrongly connected. So, if you find out that your LED strip lights won’t turn on, kindly disconnect the pin from their ports and reconnect appropriately, with each pin fusing into its port tightly.