They are not the correct connector
"These cables are 2 prong JST Cables. The led boards use 3 prong plugs with 5v, G, Data in/out running them off of 5v and G produces no power either without a datI’ma signal. Unsure what use these would have."
5 Pack LED Silicone cable kit for EasyLED series PDB and LEDs
These are 2 wire cables for power & ground only, making them ideal for non-addressable LEDs or other low power applications.
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100mm cable

200mm cable
