LED Strip Wire Male to Female 3 Pin Waterproof Connector Cable Black 40cm 5 Pack

I bought these for a device that uses overpriced LED strips, and you have to use their plugs to plug into their devices.Unfortunately, these are off by a hair... (like the difference between standard and metric) As I said, it is not this connector's fault, but they were so close... The search continues...

These work well, as described. Would like to know the voltage these will allow. I assume at least 120V but description does not say. They could be used for low volt lighting.