We've upgraded the connectors on our LED Strips and LED Harness Cables with thicker pins. These tougher pins won't bend, which helps prevent mating problems. The new male pins are 1.5 millimeter in size compared to the previous 1.0 millimeter used on the white connectors.
So how do you know if you have 12V or 24V hardware? Easy. Gray connectors were implemented in the new thicker design to help installers on the field easily distinguish from a distance if the hardware is 12V or 24V. Along with this recognition, you can also see if the LED has a +12v or +24V next to the cut line.