• 💥 FAST & EASY PROCESS﹥﹥Simply position the TWO stripped wires into the solder sleeve and apply heat to finish the connection. The solder will gradually flow, and the insulation tubing will shrink down, creating a waterproof seal.
  • 💥 WATERPROOF﹥﹥Polyolefin tubing outside and hot melt adhesive inside would effectively improve the waterproof performance of these solder connectors. Perfect for your working on boat, vehicle, home or scientific wiring projects.
  • 💥 GREAT WIRING SOLUTION FOR LIMITED SPACE AREAS﹥﹥NO Crimping Required. You can easily use these solder butt connectors in hard-to-reach or limited space areas.
  • 💥 COMPLIANT WITH ALL RELEVANT STANDARDS﹥﹥Sopoby solder seal wire connectors are compliant with ROHS, ISO 9001:2008, SGS and CE standards; Shrinking Ratio: 2:1
  • 💥 QUALITY GUARANTEE﹥﹥We have a commitment to every buyer 100% satisfaction. Please don't hesitate to contact us Sopoby if you are not satisfied with your purchase. We would try our best to assist you to ensure your satisfaction :)

I would rate more of my purchases if I could just give the products starts and not have to put all of this s#!+ in here.

I love these things! Wish I would have discovered them years ago they're so easy to use and connect the wires better than any crimp on connector plus they make the splice water proof. They are a little difficult to get the solder to melt when using a lighter without making the rest too much but it's possible if you're careful. A heat gun works the best and even at the lowest setting it melts easily I highly recommend

A butt connector that solders and seals a connection in one easy step. A little tough to use in confined spaces, but amazing for any exterior weather facing connections.

Great for car stereo installations. I never knew about this product until a few weeks ago and now I can’t believe I ever worked on electronics or audio wiring without it. Works perfect for me with a heat gun from Advance Auto. Should work with a hair dryer too.

I was a little skeptical about using these at first, but boy they are handy. A little patience with a heat gun and these will save you a lot of time and trouble, just make sure and get both wires equally warm to wick the solder. My only con is what am I ever going to do with those little ones.

I tried the heat gun method (butane soldering gun with the soldering tip off) and couldn't get the solder hot enough. I stripped another piece of wire and got another connector then I took the tip off and put the naked flame just above the solder while rolling the wire to keep from overheating one spot on it and it was pretty quick to melt without burning the heat shrink around it. After a few seconds of cooling I pulled on the joint and the wire broke a few inches before the joint but the joint was still holding strong. The test wire was 18ga.

Was skeptical regarding the usage and reliability at first. Always used crimp connectors and depending where the installation was did solder the connection prior to crimping This type of connector solves this issue. I used a Heat Gun with a heat shield that redirects the heat all around the connector and helped a lot on the way the connection was sealed and soldered. I will be checking the connection on regular intervals to verify the connection is permanent. Also great price for the amount of connectors

Soldering two small wires can be tough to accomplish. Especially working upside down. These connectors put the solder right where it's needed, and include the shrink tube too boot. A hit or miss job becomes a first-time right job.

These worked extremely well. Much better than the normal butt connectors that need to be sealed with heat shrinkable tubing. I still use the heat shrink but mostly just to reinforce the connection.

Good selection of connectors. Melts and seals like it should, no issues so far and I've used 30 pieces of various sizes so far.