
I do not have a soldering iron so I used these to splice a new fan and remove a connector that was getting very hot between my power supply and motherboard on a 3D printer without having to run new wires. Super easy to use with a heat gun and they sealed right up. I recommend sliding the sleeve onto one of the snipped wires, hooking the bare wire ends on each and looping and pressing the ends together before sliding the sleeve over the connection. It won't pull apart easily and the solder sleeve will only reinforce that.
Used for various automotive projects, and re wiring a utility trailer. Worked excellent. No issues with wiring/electrical issues after using these. Very good product, in my opinion.
very good connectors, makes professional looking connections easy.
Just used. hook up auto speaker wires work great thank you.
I used them to install a new radio in my bug. They were simple to use and look professional. Very nice

Feature Product
- EXCELLENT WIRE CONNECTION SOLUTION FOR YOUR NEXT PROJECT - Simply position the stripped wires into the solder sleeve and apply heat to finish the connection. Make properly soldered and waterproof connections in less than 30 seconds. EFFORTLESS, FAST AND EASY SOLDERING PROCESS - It takes only one step to solder and seal connected wires. More convenient than the old conventional way. No need to crimp, just use a heat gun to get the job done.
- ABSOLUTE WATERPROOF - Insulation tubing has a unique dual-walled design: polyolefin tubing on the outside and hot melt adhesive inside. When heat is applied, polyolefin tubing reduces in size and adhesive flows inside the insulation. Dual walled tubing ensures waterproof seal and prevents wire corrosion. TRANSPARENT SLEEVE - See through sleeve provides precise inspection of striped wires inside for better control of soldering process. High elasticity assures steady performance.
- COST EFFECTIVE - Color-coded tubing with four different sizes make it easy to identify the right size of the connector for every application. Choose the right connector by looking at the wire size chart on the box. UNLIMITED APPLICATION - Application in areas such as automotive, motorcycles, watercraft, home and industrial electrical projects as well as electronics industries. Especially useful in hard to reach or limited space areas.
- HERE'S A BONUS - Kit include 50 pcs x 20 mm long insulation heat shrink tubing cable wrap sleeves. Inner diameter 3.0 mm. Environmentally friendly, fast shrinking, flame retardant, soft and flexible tubing will make your wire connection rust/corrosion proof. Will protect and insulate wire ends, wiring harness and electronic components. Excellent choice for protecting headphones and phone cables.
- 100% MONEY-BACK GUARANTEE - We stand behind the quality of our product. If for any reason you are not satisfied with your purchase, please contact us. We will work on every inquiry to ensure your satisfaction. Whole kit comes with 1 Year Warranty and Full Refund within 60 Days to ensure your pleasant shopping experience.
Description
LiraPro 50 PCS Solder Seal Butt Wire Connectors and 50 PCS Heat Shrink Tube Kit
* LiraPro Solder Seal Wire Connectors and Heat Shrink Tube, an innovative wiring solution that allows to create
soldered waterproof connections safely and efficiently. This kit comes with 4 sizes of color coded connectors and also include
50 pcs 20mm long single wall shrinkable tubes
* Waterproof insulated were connectors provide high quality soldering, ideal to use in Marine, Automotive, Audio and other applications
* Easy operation: just strip your wires, insert them into the connector and apply heat. For better result use heat gun.
To control the temperature and heating time please rotate connector so that the solder melts before the shrinkable tube does.
*Transparent sleeve provides precise inspection when stripping and inserting wires
* Whether you are working on your boat, vehicle, motorcycle, home or scientific project, our heat shrink solder and seal connectors
will increase current flow and ensure solid waterproof soldering connections every time! Everyone needs to have LiraPro waterproof wire connectors in their garage or shop!
Please Note: Both sides of the connector may not be exactly the same size in diameter, one side slightly smaller than the other.
That is normal, it's a production process.
SPECIFICATION
Shrinking Ratio: 2:1
Waterproof Rate: IP67
Heat activated waterproof adhesive
Operating temperature: -55°C ~ 125°C
Minimum shrink temperature: 80°C
Minimum temperature for solder to melt: 138°C
The temperature of the solder completely melted: 160°C and UP
Connectors came in a storage box which can be reusable.
Compliant with ROHS, ISO 9001:2008, SGS and CE standards.
Amazing new product
I listened to a news report the other day on Amazon 5 star ratings are not matching product quality. Every item I have purchased has been great quality so far.They also mentioned your factory's use robots instead of people, l hope it's to save customers fair cost on products. From my point of view, thanks Amazon.
Work great, would buy again.
Very Easy yo use.
Fast shipping, good product... Will return as more products are needed....

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