Dolphin DC-100S Super B Connector w/Sealant 100 Pcs.

Love these little things. I took one apart to see how it works and there are little jagged pieces that engage on the wires, going through the insulation and making contact on the wire inside. Then the stuff on the inside of it seals it from the weather conditions. It makes quick work of attaching two or even more small wires together. If you want to be extra good, you could also strip the wires and twist them together before crimping. But overall, you don't really need to do that. It does a great job as is designed.

I used them in my garage door installation career for connecting low voltage wires in garages. Never had a callback. Excellent.

These are awesome for low volt work!

Very reliable and long lasting. They are a must in every household.

work pretty good for smaller gauge wire, don't last forever in a wet environment. we use in outdoor enclosures but still can get damp in there and fail after a few years. but a nice quick easy option

It does matter! If it doesn’t say dolphin don’t buy it! I got some knock offs and I threw them out!

Dolphin Super B connectors are very good! The white Super B connectors do not have the sealant inside, the blue Super B connectors have the sealant inside the connector.Both the white and the blue are very good.Inside the connectors; there are sharp teeth that will bite through wire insulation, as they are crimped.I'm "old school", I still strip the wires and twist them together, then crimp.There's a rugged insulation on the outside of each connector, to prevent a short circuit.

C'nect'em, shmush'em, forget about 'em! All in a days work. Life is good!