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Weller SP40LK 40 Watt Soldering Iron Kit

4.1 4.1 out of 5 stars 76 ratings
Currently unavailable.
We don't know when or if this item will be back in stock.
Brand Weller
Specific Uses For Product Electronics
Power Source Corded Electric
Wattage 40 watts
Special Feature Resistant Handle

About this item

  • Lightweight pencil iron develops 900 degrees F
  • Stainless steel barrel and heat and impact resistant handle
  • Indicator light allows you to instantly see that the iron is on
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Weller SP40LK 40 Watt Soldering Iron Kit

Weller SP40LK 40 Watt Soldering Iron Kit

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Product Description

From the Manufacturer

Weller SP40LK 40 watt Soldering Iron Kit includes the SP40L iron, 4 tips, lead free solder and soldering aid tool. This iron is ideal for electronics, electrical, hobbies, kits, etc.

Top Brand: Weller

Highly Rated
50K+ customers rate items from this brand highly
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10K+ orders for this brand in past 3 months
Low Returns
Customers usually keep items from this brand

Important information

Wattage

40 watts

Customer reviews

4.1 out of 5 stars
4.1 out of 5
76 global ratings

Customers say

Customers like the quality and performance of the soldering iron. For example, they mention it's a well-made tool and works great for its purpose. That said, opinions are mixed on the heat.

AI-generated from the text of customer reviews

30 customers mention22 positive8 negative

Customers like the quality of the soldering iron. They say it's a well-made tool that will last for a long time. Some customers also mention that the stand is cheap.

"...Not too hot, and hot enough to do the job. It came with a small sized coil of solder that is a perfect fit...." Read more

"...It heats up fast, stays hot, and has interchangeable tips that are easy to buy if new ones are needed, and that makes this one a winner in my book...." Read more

"...The stand is a joke.The included solder works, but is bad.The 3 tips are nice...." Read more

"This item is a great budget soldering iron...." Read more

15 customers mention12 positive3 negative

Customers like the performance of the soldering iron. They mention that it works great for their guitars, heats up quick, and gets the job done nicely. Some say that it's a very good tool and a powerful tool. They also mention that the tool is very handy and does an excellent job for solder solar connections and all other electrical repairs.

"...I use it to solder parts on my guitars, and it works great for that purpose...." Read more

"...Its 30 watts and works great so far. And the cord is normal, not hard and kinked. Don't waste your money on the name, get a different one." Read more

"The soldering iron work very effectively in soldering small parts...." Read more

"...In the end I got it perfectly though and it looks professional and works just fine. I have no complaints about this kit." Read more

5 customers mention5 positive0 negative

Customers are satisfied with the tips of the soldering iron. They mention that the 3 tips are nice, decent, and interchangeable. Some say that the package comes with 2 extra tips and a plastic helping tool.

"...It heats up fast, stays hot, and has interchangeable tips that are easy to buy if new ones are needed, and that makes this one a winner in my book...." Read more

"...The included solder works, but is bad.The 3 tips are nice.I have no idea what the black things is for." Read more

"The stand is cheap. The iron is good and tips are fine...." Read more

"...The package comes with 2 extra tips and some sort of plastic helping tool to solder which is extremely useful when soldering wires." Read more

22 customers mention11 positive11 negative

Customers are mixed about the heat of the soldering iron. Some mention that it heats quickly and does an excellent job for solderizing solar connections, while others say that it would not get hot enough to melt the solders. Some say that the cord is too short.

"...The 40 watt power is just right. Not too hot, and hot enough to do the job. It came with a small sized coil of solder that is a perfect fit...." Read more

"...The iron was also too hot to hold more than 1/2 sec on anything. Hotter than other 40 watters I have used...." Read more

"...It heats up fast, stays hot, and has interchangeable tips that are easy to buy if new ones are needed, and that makes this one a winner in my book...." Read more

"Used just a few times it stopped heating up all together." Read more

Top reviews from the United States

Miser
5.0 out of 5 stars Just what I needed
Reviewed in the United States on April 7, 2011
Verified Purchase
I have to solder a ribbon wire with 8 closely spaced leads to a small printed circuit board and this kit is made to order. The needle point tip is just the right size. The 40 watt power is just right. Not too hot, and hot enough to do the job. It came with a small sized coil of solder that is a perfect fit. The stand keeps the iron from burning my counter top. There is no instruction on what to do with that two ended piece of black plastic, but it was perfect for manipulating the wires onto the right spot on the circuit board and hold it there while I melt the solder. What seemed like a daunting job was accomplished easily with this iron. The repair I made saved a non-functioning part that fully pays for this soldering kit. The included needle tip would have cost almost as much as this kit if bought separately. A terrific value. Highly recommended for people with need to solder small wires.
10 people found this helpful
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Michael Livote
5.0 out of 5 stars Great, cheap soldering iron
Reviewed in the United States on March 4, 2013
Verified Purchase
This was exactly what it was advertised to be, a well made, effective 40 watt soldering iron for light weight use. I use it to solder parts on my guitars, and it works great for that purpose. It heats up fast, stays hot, and has interchangeable tips that are easy to buy if new ones are needed, and that makes this one a winner in my book. Highly recommended!
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OMG ICECREAM
5.0 out of 5 stars Not sure what people are complaining about
Reviewed in the United States on July 31, 2011
Verified Purchase
I finally got around to using this kit. Everything in the kit is great except for the MT10 tip (which is an oaf of a tip). The ST7 pencil is probably Weller's top tip, which makes this kit a bargain. The iron heats up in about 2 minutes, though let it heat up for about 3-4 to get really consistent heating. After the 4 minutes, it stays throughout the job. Always tin your tips after use, no matter what you use.

If you already have a soldering station, this is a great match. If you don't I suggest:
[...]
or
[...]
With this combo, you easily be spending less than $35 for a great set.
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Deacon Boogie
3.0 out of 5 stars Just meat and potatoes. And only that.
Reviewed in the United States on January 6, 2011
Verified Purchase
Technically, you receive a working 40-watt soldering iron and everything advertised. However, it does not come in a storage box. The soldering stand is also a complete joke -- they didn't even bother filing down the metal edges so be warned, you may easily slice a finger open. Otherwise, knowing these facts and if you can deal with them, you'll get a nicely made tool that will likely last for many years.
4 people found this helpful
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B. Kelley
1.0 out of 5 stars Big Name - Cheap Iron
Reviewed in the United States on August 21, 2013
Verified Purchase
I purchased this to use in building amplifiers. I chose Weller because of the name. First off the cord is very stiff. More so than other cheap cords. It catches and drags on everything on the bench, and I could never get it to relax or straighten out. The iron was also too hot to hold more than 1/2 sec on anything. Hotter than other 40 watters I have used. But worst is it burned up after a few months of light duty so I bought the Sinometer one for 6.00. Its 30 watts and works great so far. And the cord is normal, not hard and kinked. Don't waste your money on the name, get a different one.
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Joseph M. Rudys
2.0 out of 5 stars Won't heat up anymore
Reviewed in the United States on May 23, 2017
Verified Purchase
Used just a few times it stopped heating up all together.
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Greg Mcnamer
4.0 out of 5 stars Be careful of getting it too hot...
Reviewed in the United States on March 18, 2013
Verified Purchase
The iron works pretty well. The tips are decent. I had a problem with them getting covered in junk and not working well until I thoughroughly cleaned them on a wet sponge. I realized that the iron was just getting too hot and burning the resin in my solder onto the tip.

Now that I know that leaving it on for a few minutes results in too high of temperature, I cool it a bit by touching it to a wet sponge before each step.

The stand is a joke.

The included solder works, but is bad.

The 3 tips are nice.

I have no idea what the black things is for.
2 people found this helpful
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Kathrynlee
5.0 out of 5 stars Great item, not for overseas though!
Reviewed in the United States on June 12, 2011
Verified Purchase
This item is a great budget soldering iron. A pity Amazon sells it to Australia, as our outlet is obviously different enough to blow the fuse within a couple of minutes. I bought one, returned it, then bought another and they both did the same thing. If you're from overseas, I would recommend a butane one that doesn't require a power point.
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Top reviews from other countries

D
5.0 out of 5 stars Highly recommend!
Reviewed in Canada on August 22, 2014
Verified Purchase
Love this soldering iron!
Works perfectly everytime.
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