I'm working on a project that uses solenoids for mechanical activation. The solenoids have lugs for the + and - electrical connections. I am connecting my wires to the lugs with ring terminals. The problem I have is that the product will be subject to outdoor, harsh environmental conditions. I'm looking for a way to connect to the lugs and protect the connections from the environmental conditions. Once the ring terminals are attached, the only reason to disconnect them would be if the solenoid breaks and you have to replace it. I've thought about just connecting the ring terminals and putting heat shrink wrap around the terminal and lug, but that seems like a "DIY" or hobbiest solution. I was wondering if anybody might have any advice on a more professional looking solution. If anything is unclear, feel free to ask questions. Thanks in advance.