External wiring question for driving lights

[Mike E]

Ok, I will post pics but I finished the job last night around 1am. I'm certainly not an electrician but the instructions seemed very easy so I decided to do this myself. I wired up my PIAA 520 driving lights to my brushguard. Got everything wired up and operational! I used the pre-existing wires through the firewall to hook up the switch.

My question is, the connections that plug into the lights certainly don't look waterproof. What has everyone else used to seal up these connections?