540PCS Marine Grade Heat Shrink Wire Connectors

Fast shipping. Used them to rewire bilge pumps. Good quality. They have been in the boat since last year and show no signs of corrosion. Used mini torch to melt the solder and shrink the seal.

Great selection. Very happy with the purchase.

The connectors are really nice. They crimp beautifully (with the correct heat-shrink connector jaws) They crimp down tightly and heat-shrink nice and tight. They make for a beautiful and neat wiring job. I recommend purchasing a decent crimper set with at least 3 jaws/crimp types...sleeveless, nylon, heat shrink. You can pick a set up hear on Amazon for a reasonable price. I ordered the KF CPTEC Crimping Tool Set 7PCS for about $40. If you only intend to crimp heat-shrink connectors there is an option for just that jaw set and crimper for $17. Don't go cheapo and try using a regular crimper, it will show. My only issue with this set is the case which is quite cheesey but easily remedyed by purchasing a better quality box for very little. I just so happen to have a half-dozen or so that I picked up at Academy in the fishing dept.

Overall these are good for the price. The heat shrink seals well and I had no issues crimping 16 AWG and above stranded wire. For 18 gauge and smaller, I had much harder time keeping it from slipping out after crimping it

They crimp good and are made well. I had a box of Kuject connectors, which are flimsy, resulting in at least a 30% failure rate when crimping, the wire came out easily. Then I got these the Sopoby and they work great. I threw all the Kuject ones away. In the picture you see the two side by side with the insulation removed. The Sopoby is on the right and as you can see is much more solid.

Very nice selection of connections. Will be updating the wiring for 2005 boat and will update review after the install regarding the quality of insulation after heat shrink.

I took a chance and bought these for use on a sailboat that lives in salt water. Normally I buy Ancor connectors since they are the absolute highest quality available but they are also extremely expensive. The metal connectors in this kit are not quite as heavy duty as the Ancor ones but they are close and the adhesive lined, heavy duty heat shrink is identical. For the price these connectors are exceptionally high quality and a much better value than Ancor for most electrical tasks. If you need some high quality marine rated electrical connectors I would highly recommend these.

Hardly any male female connectors not real pleased

Great kit .. lots of choices a must have

I wish I found these sooner. Much cheaper than the comparable connectors for local stores. I've crimped these with good professional crimpers or cheap crimpers that hurt your hand and no issues. The heat shrink works easily with a heat gun but I've also used a lighter or butane soldering iron in the field with no problems. I put them in a more rugged case I already had.

These are decent connecters and a good selection for the price

I’m always afraid of products that look to be ‘budget’ items. But… I took a chance with these connectors as I wouldn’t lose much if they turned out to be crap. I am a ham radio enthusiast and electronics tinkerer so I had to try them out right away on some current projects getting my HF radio cables and battery connections in order. I’ve only used them a dozen times or more so far and I must say that I’m suitably impressed. I like the fairly wide variety of sizes for different wire gauges. BUT, please note that if you are going to get good connections you need to use a proper set of crimpers. Although it may be a bit cleaner to use a heat gun to finish the heat seal, a lighter works just fine for a quick “one off” job. Using a lighter may leave a tiny bit or soot on the connector, but that usually can be wiped off. I’m happy so far and can’t see why that would change…

Figured I'd give this kit a try since for how many pieces you get it's nearly a tenth of the price from buying the same stuff at most electrical shops. The shrink wrap works just as good as the expensive ones and they crimp exactly the same as well just wish there was some step down sizes in there. Otherwise definitely get this kit if you want sealed connectors.