TICONN 200PCS Heat Shrink Butt Wire Connector Kit, Insulated Waterproof Electrical Wire Crimp Terminals Butt Splice for Marine Automotive (200PCS)

They work .. don’t crimp to hard or you will split cover

They are waterproof and do what they are designed to do. I install wiring on vehicles for exterior lighting, spot lights, bed lights, ground effects, etc. These seal very well. And they seem to be well made.

So far no problems I use them on a mud truck

I used these on the lighting for a flat bed me and coworkers built for a f550 work truck

These connectors work really well. I used it to connect my landscape light cable thats a 16 gauge that got disconnected at a point in the line.

Easy to use..excellent product

Quality for the price, great in the marine environment.

I used to use separate shrink wrap to finish my wire connections, but that involved keeping a supply of wrap of various sizes and adding another step to the process. These connectors take care of that and even add another layer of protection - waterproofing.

When applying heat to shrink it, it works! I’ve applied heat of an actual heat gun, not a hair drier, and it worked. Wires are secure and sealed properly. Happy with the product!

I used these to splice a new trailer end harness. They sealed very well and I prefer a mechanical crimped connection as opposed to the solder type butt connectors. I put heat shrink tubing over each connector although I probably didnt need to.