haisstronica 340 PCS Solder Seal Wire Connectors Marine Grade Heat Shrink Solder Sleeves 5 Sizes Colors Waterproof Butt Splice Wire Terminals for Wire Joint/Boat/Electrician

Great quality set at a great price. Plenty of different sizes for different wire gauges.

Really good product. Very easy to use.

Best value for money

Excellent value for money. Good quality and easy to use for hobby work

These are great for all types of jobs great range of sizes require a good amount of heat

Hassle free and does the job perfectly.

Good price work great on connections Highly recommend Bit hit and miss on temp settings but once I got correct temps all good

Perfect for what I need

Très bien pour les raccordement de fil de mon auto radio

The kit included everything I needed to complete the rewiring of my tractor. The connectors were easy to use and durable. I highly recommend this to anyone needing weather proof wiring.

Ottimo , fatti bene

Très pratique

These have become my "go to" when wiring a model railroad. Our club is in the process of rewiring an old layout and there are a lot of connections that have to be rerouted. It's so much faster and convenient to use the heat shrink/solder connectors. We have used them extensively to connect solid wires to stranded wires, by following different steps than the instructions. I first insert the stranded wire, stripped about ½ to ¾", then holding everything together, push the solid wire in the other end, similarly stripped to ¾ or ½", until the two overlap. If you choose a small enough connector where everything fits snugly, then using the heat gun it's all done in a few seconds. Be sure to allow the thing to cool before you move the wires - it takes 10 to 15 seconds or so for everything to cool down and reach its maximum strength. But once it's done, it is done. We've had no issues with bad connections (except when you get too aggressive and don't let things cool down and harden). All of my experience with these is low-voltage model railroad power - 12v DC, 16v AC, and 25v AC, so I can't comment on other higher voltage use.