








🔦 Light up your world with power and precision—because your adventures deserve nothing less!
The Siuyiu TK-25C-SX Tactical Flashlight combines a cutting-edge 30W LED delivering 1500 lumens with 5 adjustable light modes and zoom focus. Featuring a rechargeable 5000mAh lithium-ion battery with an intuitive LCD power display and USB-C charging, it offers up to 14 hours of reliable illumination. Built from durable aluminum alloy, it withstands drops up to 15 feet and meets IP45 waterproof standards, making it ideal for camping, emergencies, and home security. The package includes essential accessories and a 1-year replacement warranty, ensuring long-lasting performance and confidence.






| Special Feature | Adjustable Focus, Adjustable Light Modes, High Power, Impact Resistant, Long Range |
| Color | Black |
| Power Source | Battery Powered |
| Light Source Type | LED |
| Material | Abs, Aluminum |
| White Brightness | 1500 Lumens |
| Included Components | 1* Portable LED Flashlight, 1* User Manual, Battery, Lanyard, Usb Cable |
| Product Dimensions | 2.08"D x 4.48"W x 7.87"H |
| Voltage | 5 Volts (DC) |
| Battery Cell Composition | Lithium Ion |
| Item Weight | 362.87 Grams |
| Number of Batteries | 1 Lithium Polymer batteries required. |
| Water Resistance Level | Waterproof |
| Warranty Type | full warranty |
| Brand | Siuyiu |
| Brightness | 1500 Lumen |
| Battery Description | Lithium-Ion |
| Style | Moderna |
| Bulb Base | GU5.3 |
| Light Source Wattage | 30 Watts |
| Recommended Uses For Product | camping, emergency, outdoor, home |
| Manufacturer | Siuyiu |
| Size | TK-25C-SX |
| UPC | 658359190981 |
| Light Output Maximum | 1500 Lumens |
| Part Number | YG-TK01 |
| Item Weight | 12.8 ounces |
| Item model number | TK-25C-SX |
| Batteries | 1 Lithium Polymer batteries required. |
| Item Package Quantity | 1 |
| Shape | Cylindrical |
| Number of Lights | 1 |
| Special Features | Adjustable Focus, Adjustable Light Modes, High Power, Impact Resistant, Long Range |
| Shade Material | Aluminum |
| Batteries Included? | No |
| Batteries Required? | No |
| Wattage | 30 watts |
| Wattage | 30 Watts |
| Bulb Features | Adjustable Focus, Long Range, Multiple Light Modes |
| Color Temperature | 5000 Kelvin |
D**G
Can see perfectly and brightly clear across a lake or river by far
This is the best flashlight I have ever owned it is by far the brightest flash I’ve ever owned and definitely worth the price I hope they bring them back soon
B**S
Many flashlights I buy are junk however this one is the real deal.
Flashlight heavy duty and heavy. Features ..., has big rechargeable battery, zoom, bright, a display that, shows battery state of charge. Is not cheap, but worth it so far. I am not familier the fat battery, 3.7v 6000 mah, brc 26650 > Time will tell?
M**L
Excellent Quality, Super Bright
If you're just browsing reviews for bullet points, here's the skinny:CONS:1) To turn it off, you have to hold the button down for a solid second otherwise it won't shut off.2) Weight distribution is uneven - I like to use the back of the light sometimes with my teeth while I free up both hands for a moment. This flashlight does not lend itself to doing that very easily.3) Like all the others, it has three brightness modes with TWO additional flashing modes. This isn't a problem if they gave us a way to disable it because it's a lot of modes to cycle through and sort of frustrating. Emergency flashing is a useless feature in a daily use flashlight ... it should be something that you have to enable after you purchase it ... it should NOT be enabled by default because almost no one ever uses it.4) The lanyard string is not sealed on the ends, so they tend to fray and when they fall out of the spring tensioner, they are all but impossible to feed back through the holes without using a tool to assist.5) No beam focus at all. It's a fixed focal length. However, I have never once used it and had a desire to adjust it ... so take that into consideration.PROS:1) The first mode that it hits when you first turn it on is the lowest setting. And when you're in doors, that's the only setting you will need ... once in a while I hit the middle setting but the brightest setting is simply way too bright for indoor use. It will reflect off of lighter surfaces and you have to squint your eyes because wherever you're shining it gets totally bleached out by the sheer intensity of 2,000 lumens. Outdoors, the brightest setting lights up PLENTY of distance in front of you ... and on a pitch black night, it's kind of like have a little pocket of sunlight with you ... very powerful and very nice.2) Heat distribution is spot on considering the technology in use with this flashlight. I've worked with high intensity LEDs off and on for a few years and they simply produce a TON of heat when they are driven to their max level. That is simply the nature of physics and ohms law etc. HOWEVER, when you use the low or medium setting, in room temperature, it does not heat up past room temperature at all, which is very nice. The heat sync they designed at the front of the light was a good design. When you leave it on max setting for more than a few minutes, it gets noticeably warm, but not alarmingly hot. I've used flashlights in the past with these LEDs that did not have any kind of heat sync designed into them and they end up heating the entire flashlight making it uncomfortable to simply hold the flashlight. This one keeps the warm energy at the front of the unit so that the part you hold with your hand never gets warm. That's a bonus to me ... but it's also a negative because it makes the weight of the unit imbalanced which makes it difficult to put the back end into your mouth for a hands free experience in those times when you need that for a minute or two ... which I realized that I do often. The weight and the imbalance of the weight makes doing this very uncomfortable and difficult.3) The built in charging works fine with the USB cable, but I am a vaper and I use box mods so I'm well experienced with removing and replacing these batteries and charging them with my own charger and doing this is stupid easy with this light. I don't use the on board charger even though it works great.4) The included battery is NOT some cheap fill in that they just toss in to appease their customers. It is a very solid battery that is designed to hold a lot of charge with a high milliampere rating and it does indeed last a long time especially if you are like me and you only use the first two intensities. It also sustains the brightness intensity at each setting without dimming as the batter discharges. Not to mention it has a three LED indicator that lets you know when your battery is running low ... a nice touch because you wont find yourself without light all of a sudden ... you will have plenty of warning so you can handle it ahead of time.Comments:If you didn't know this, these batteries can be charged and re-charged at any point during the drain cycle. They don't develop a "memory" like standard rechargeable do. That along with strong current delivery are the main selling points to lithium ion technology.In my pursuit of a decent high lumen flashlight, I have been disappointed to realize that they all do these modes where they cycle through and they have those flashing modes which I realize is for emergency situations when you're out in the wild or whatever, but I would have to think that well over 90% of flashlight users will never use those modes. They need to give us some kind of switch maybe ... where you have to access it by taking the end off and flipping the switch over to like a 'non-outdoor' usage mode so that we don't have to be hassled by that useless feature.The fact that you have to hold the power button down for a short time in order to turn this light off is frustrating for me because I'm old school, but at the same time, it does offer the ability to turn it off no matter what mode you're in which I suppose could be seen as a value add to the unit. Again, having some way to change that so that the off mode is in the mode cycles would be a nice feature. But for $30 ... maybe I'm asking too much.The beam width cannot be adjusted, but I have never used it and wished that it could. The factory setting for that is quite perfect in my opinion. I think that having that feature could become frustrating if say you had the light in your tool box and it got knocked around and you turn it on only having to re-adjust it to your liking all the time. So I think I prefer the static setting as opposed to yet another thing to tinker with that in the long run isn't necessary because the three brightness levels are set at a perfect level ... like if you needed a focused beam for whatever reason, just put it on the highest setting and you're gonna have more than enough light on whatever you're looking at ... and that would apply to pretty much any distance because it can light things up further than you can make out any detail of whatever object you're looking at ... in other words the distance goes further than our eyes are useful at in the first place.All in all, it's a good purchase with some minor issues for me personally that I'm sure would not be common complaints for most people. Except for that string that feed through the spring tensioner for the lanyard ... no having that sealed at the ends like a shoe string causes those ends to fray quickly. I had to soak the ends in epoxy to keep them tight and stop the fraying ... they get a D- on the lanyard design for sure. Even the spring tensioner isn't very strong and it wont really support the weight of the unit causing the string to pull out which was frustrating until I fixed it with epoxy.Would I buy it again if I had to buy another light? Probably not, but only because there are so many options out there, I would want to try a different design to see how it is. But that being said, I don't regret this purchase at all. It's a very well built, thoughtfully designed flashlight that I know will serve for years to come. And when you buy from Amazon and especially if you're a prime member ... there is ZERO risk to getting this because you can send it back within 30 days at no shipping cost to you.
G**Y
Great Value Flashlight!
Easy to operate and long battery life. Telescopic lens makes for a nice bright light!
**A
Great light with spot and flood capability!
Great flash light for the price! Plus it can be used to charge other electronic devices. Feels great in the hand and has a digital battery display.
G**E
Works
Believe the ad bright bright light love it as I’m visually impaired and this is my second set of eyes
J**N
Love the charge level lights
I really like that it has a visible meter to show the charge level. The light is plenty bright and I also like that it starts on the low beam setting. To turn the light off, one pushes the switch and hold until the light turns off. It wasn't hard to figure out because pushing the button over and over cycles through a whole slew of flashing light sequences. Speaking of which, this happens to be my biggest turn off. I don't need a light that flashes and the infamous SOS pattern is totally useless. I say that as a first technical rescue first responder. Useless. A few illumination levels and turns off. That's all a flashlight needs.
D**Y
Poor Battery life
This flashlight was delivered on 12/19/23 and we fullly charged the flashlight. Did not use, but checked battery level on 02/01/23 and it was very low. Connected the flashlight to charger and after 6 days is still not fully charged.Very disappointed to learn that the return window was 01/31/24 only 6 weeks after receiving the flashlight.I plan to stop making purchases on Amazon with such short return windows.Dan Autry
Trustpilot
1 month ago
4 days ago