SEQURE S99 Portable Soldering Iron, Max 150W Electric Soldering Iron, 122℉-932℉ Fast Heating, DC/PD/PPS Power Input, Mini Welding Tool (Only Controller + BC2 Solder Tip)

So I'm getting this to replace my old LRP 90W bench unit, or rather reduce it's footprint. I searched around and out of all the others, I felt this had the best price/feature ratio. And the price was suspiciously low so I gambled and it paid off! This is seriously a spectacular tool, and then add on it cost half as much as most others and it blows my mind.A few thoughts about it...I only tested & used it briefly and will update my review in the future. I typically solder wires from about 24G to 8G. Probably my biggest challenge is those large XT90 connectors which can suck down a ton of heat. I'm certain none of these will give the iron trouble but for the big XT90 connector I'll probably have to get a different tip to better transfer the heat. The included tip is actually a "wedge", and not a point as I was uncertain of prior to purchesing. But that's alright since these tips are common and the original brand runs $30-$50 each, or you can get unnamed ones for $10-$30.I really wondered how truthful the specifications were in that this iron can get to ~150ish watts (with low impedance tips). I was hoping for at least 50 true watts. Boy I was in for a surprise! I measured about 5.9 ohms on my tip and cranking up the iron to 500C using my Zendure SuperTank Pro. It tapped out at 73.7W which is exactly what they advertised. You can see in the photos which were tough to take since it heated so fast, then lowered wattage to maintain temp, and also the Zendure screen wanted to quickly time out. I kept the power mode on auto and it seemed to default to PD. One thing to consider is if you get a low impedance tip (2.5Ohm), you will need an absolute unit of a PD charger to power this. And I don't have anything above 100W PD TBH. Supposedly, you can force it in PPS mode (Provided your PS has this mode available) which would keep the wattage in check for the low impedance tip with an undersized power supply. There is a menu which allows you to tweak settings and one of the most under rated setting is the ability to adjust the temp-change increments. For example, a single press can make you go up or down either 20, 30, 40, 50 degree increments, or whatever in between you choose.PROS:Very TinyUnbelievably powerfulCommon power method (USB-C)Many features and options for the discerning tinkererThey come out with FW updates!CONS:Requires a legit powerful USB-C power sourceSo tiny it can get lostFinal Thoughts:This thing is well worth every one of the $30 I spent on it. I suspect the price will go up as word gets out. I would be happy with this if I spent $60 on it like most others in it's class cost. Get it while it's still cheap!

Soldering iron looks ok, but the included tip appears to be used before. It has stains and oxidation marks right out of the box.

You need at least a 20 V plug-in for the store work.

Very very fast heat up and features are extensive!

The media could not be loaded. I am revising this review after receiving a fixed unit. I have not fully evaluated the fixed one yet but it certainly performs well enough to give it a couple stars now.As a long-time user of Hakko T18 clones I was looking forward to my first cartridge type iron but the S99 initially left me very disappointed.First, there is a known “reliability issue” with older versions. I expected to get a factory fixed one since I ordered more than two months after they were supposedly fixed for orders after April 23rd. Instead I received a seemingly-unmodified S99-V1.4 rev. Sequre says V1.3 and V1.4 before April 23rd require the DIY fix but never say if 1.4 after that date has a visible fix (mine did not… old firmware too). I’ve since had it replaced for a different issue and my replacement is V1.5, so we know the updated version exists, at least. If my original V1.4 was factory modified then it isn’t the same fix they suggest for DIY.They specifically exclude anyone who ordered after April 23rd from the conciliatory free 75W 5.5Ω tip. That’s unfortunate since they continued shipping defective units through Amazon after that date. I definitely could have used that free tip but, instead, I ended up ordering one of their more expensive 150W 2.5Ω tips out of pocket. In case you are wondering: They list the 5.5Ω tips as “S99” tips and the 2.5Ω tips as “JBC-compatible” tips.The other defect was a non-functional motion sensor. The iron would time out and go to sleep while I worked regardless of sensitivity setting. It doesn’t matter how much you wave it around or tap on things. I had to hit a button to wake it up and resume heating but that also changes my set temperature, which became a problem. I updated the FW and there was no improvement but it did set my temperature increment back to 50°C and my sleep time back to 1 minute, which caused my tip to freeze to my workpiece while I waited for the temps to recover (after realizing it went to sleep and waking it up). I couldn’t see the screen at the angle I was working and couldn’t tell the setting had jumped so low. Looking around the Internet I found one other user with the motion sensor issue.Anyway, all that is fixed with the replacement PCB. Simply picking it up wakes it and it no longer goes to sleep when you are using it. I haven’t had the chance to fully evaluate it yet but I will be using the new 150W C245-905 2.5Ω tip to build some lithium ion battery packs soon. I also ordered a Lenovo C135 power supply since Sequre’s own videos imply it is recommended for high-wattage tips.Since I haven’t got to do the soldering I intended to do yet I might as well note my experience with the small amount of soldering I did with the included tip and power supply. It’s not exactly the iron’s fault but when you twist to angle your tip the included USB-C cable fights you with spring tension. What is the iron’s fault is the cylindrical shape that makes it so you can’t easily hold an angle during soldering. This allows the tension to overcome a delicate touch. There should be flat sides or finger grips. The included K (knife) tip in particular requires rotating the iron to get the correct angle so you’d think they would know this.Compounding that ergonomic issue, there is no ridge to keep your fingers from slipping forward onto the hot parts. Many irons have this for obvious reasons so it’s a strange oversight.Of course, the included power supply and 5.5Ω K-tip performed better than my traditional iron (Hakko T18 clone). Heats instantly. Recovers quickly. Handles much more thermal mass than I ever expected from an iron and tip of this size. I knew cartridge irons were great and that I’m very late to this party but I’m impressed beyond even that expectation… and that’s before I’m set up with a 2.5Ω tip and a bigger PSU. If it performs much better I might not even have to get a genuine JBC tip as I originally intended.I’ll also be running this from power tool batteries so the XT60 cable is much appreciated. I don’t expect it will fight me as much as the USB-C cable either. I got the appropriate XT60 connector to mate with it here on Amazon and also ordered some “premium” DeWALT 20V Max battery adapters that are intended for projects like Power Wheels conversions. I’ll also try a DeWALT DCB094K 100W USB-C adapter with the USB-C cable. I expect good things!

Perfect solderer and perfect for on-the-go soldering

Not worth your time or hard earned money

fore the price can not beat it, everything that is featured in the description was true.Best soldering pen I know