After I put it to the test during my recent electrical project i was delighted WITH the ESUPPORT connector's waterproof capabilities. The connectors fit securely and locked in place, ensuring that my wiring stayed dry and protected from the elements .I appreciated how easy these connectors were to use and how well they held up under pressure. The only downside was that the instructions could have been clearer, but once I figured out the connectors` mechanism, they were a breeze to work with..