DolphinDC-100S Super B Connector w/Sealant 100 Pcs.

These are awesome for low volt work!

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

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.

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

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

I needed to tap into a very thin, very short, hard to reach wire. There was no way I could get enough wire exposed to use a butt connector or crimp cap, much less get a large crimp tool in there. This was perfect, I cut the wire and created a bridge with my own wiring. I was able to slide this down the wire and get it to hold into place while I crimped it with a small needle nose plier. The teeth do a great job of puncturing the insulation and holding it in place. I ran a lot of tests prior to my install. Even when I gave it a weak to moderate crimp, I still got connectivity. Only when I did a really weak crimp, did it not work, but that was being purposely mediocre with my attempt. Bottom line: if you're in need of something for thin, hard to reach wiring, this is it.

We used these for some low voltage audio connections. The connections are located in a floor plate and sometimes get a little wet as they are mopped over. They seem to be holding up well. The only issue I had, is there isn't much movement on the connectors when crimping so it is a little hard to tell how much to press them.

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.