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🔦 Illuminate your every moment — because being prepared never goes out of style.
The UltraTac K1 Keychain Flashlight is a sleek, durable EDC essential delivering 180 lumens of bright LED light. Crafted from hard-anodized aluminum, it’s waterproof (IPX8) and impact resistant, powered by a single AAA battery compatible with rechargeables. With three adjustable light modes and a glow-in-the-dark diffuser, it’s designed for seamless everyday carry and reliable performance in any low-light scenario.













| ASIN | B09HTSH3NX |
| Additional Features | Adjustable Light Modes with Push Button Switch, Cold Resistant, Impact Resistant, Lightweight |
| Batteries are Included | No |
| Battery Description | Alkaline |
| Best Sellers Rank | #45,240 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #513 in Handheld Flashlights |
| Brand Name | UltraTac |
| Color | BLACK X 1 |
| Color Rendering Index | 75.00 |
| Color Temperature | 7000 Kelvin |
| Customer Reviews | 4.4 out of 5 stars 988 Reviews |
| Finish Types | Black |
| Included Components | Glow in the dark rubber diffuser, Stainless Steel Pocket clip |
| Item Dimensions D x W x H | 2.95"D x 0.59"W x 0.59"H |
| Item Dimensions L x W x H | 2.95"L x 0.59"W x 0.59"H |
| Item Weight | 0.49 Ounces |
| Light Output Maximum | 180 Lumens |
| Light Source Type | LED |
| Manufacturer | LAMPO OPTOELECTRONIC CO., LIMITED |
| Manufacturer Part Number | K1-BLK-01 |
| Manufacturer Warranty Description | 1 year warranty. |
| Material | Aluminum |
| Material Type | Aluminum |
| Model Number | K1-BLK-01 |
| Number of Batteries | 1 AAA batteries required. |
| Number of Light Sources | 1 |
| Power Source | Battery Powered |
| Shape | Cylindrical |
| Special Feature | Adjustable Light Modes with Push Button Switch, Cold Resistant, Impact Resistant, Lightweight |
| Style Name | Keychain |
| Unit Count | 1 Count |
| Voltage | 1.5 Volts (DC) |
| Warranty Type | Limited |
| Water Resistance Level | Waterproof |
| Wattage | 1 watts |
| White Brightness | 180 Lumens |
J**E
Great Brightness And Perfect Optics
This is a good mini flashlight that has surprising brightness for its size. The beam is well focused so it is almost a spot light compared to other AAA lights I have. This makes it very usable for seeing ahead where you may need to see terrain issues in a hazardous area and you don't have anything else available. It is not too focused either where you only see what is directly in front of you. Perfectly designed optics is what sets this apart and I like the push button on off.
A**N
I ordered 2 because I was impressed with the light I purchased as a gift.
Purchased as a gift and then after receiving the light, I bought one for myself. The light is small enough to carry in your bag, wallet, or pocket. The light is strong enough to light the way and there is a green glow that lights the way for a few moments after you turn it off. The light is super easy to use, but I did have a little bit of a problem putting the batteries in and closing the cap. The light I purchased is not rechargeable, but uses batteries. I was shocked how well the light is made and how nice it looked; quite the value for the money paid. I highly recommend this flashlight.
R**S
Great value for $10.
The ultra tac k1 is a little gem. The only problem is when you attach the small carabineer, the light hangs below my keys making it too long for my taste. Will be experimenting with smaller attachments. This in no way reflects the quality of the light, just personal preference. The k1 also accepts 10440 3.9 volt battery which will burn out a maglite solitaire LED. Gives a lot more brightness but does not have a step down feature so the light can get very hot. Great value
J**D
Sturdy and reliable
I first got this little flashlight 3 years ago, and it lived on my keychain until recently. It handled 3 years of being beat up by my keys, dropped on concrete, and tumbled around in my bags before it finally gave out. Though I didn't use it on a daily basis, it certainly came in handy often enough, so I immediately felt the loss when my old one died. One day later I went online and ordered a replacement. I've had a lot of little flashlights on my keychain over the years, but none have lasted like this one. It's very bright for such a small piece, and it's well-made. The metal housing can take a lot of bumps and scrapes without affecting functionality, and it's considerably smaller than the others I've had. I love that it's not the least bit bulky but works so well. Of course, I have plenty of larger, brighter flashlights for typical use, but this little flashlight is great to have when you're on the go and least expect to need one.
L**L
NOC Nurse ❤️
This is a great little light! I have it on my badge and it's great for general lighting areas or checking pupillary response. The glow in the dark cover is great to protect from all the bumps it's takes in the 12hr shift. Definitely recommend. Super easy to use simple push button on off.
E**S
Fantastic
Absolutely fantastic flashlight. I bought it thinking I would need to use 10440 batteries in it to have enough brightness for how tiny it is, but wow was I wrong! Even a AAA battery puts out a ridiculous amount of light for how tiny it is. I could work on a car with this thing if I had to, it is that bright. All I use this for is everyday carry light duty stuff looking for problems/leaks on analyzers in the lab I work in, and it is excellent. Battery life is also great, but I honestly have not used it enough to give an accurate idea of daily-use battery life because I do not actually use the light every day for a significant amount of time. Look at other reviews for battery life info. I do recommend storing the light in your pocket with the barrel slightly unscrewed because I have had the tail switch get turned on in my pocket once and it killed the battery. Not really a big deal to me though, I just test the light once a day to make sure the battery is still charged and see that it's at full brightness. The silicone glow in the dark diffuser they send with it is also fantastic. Just a second or two of the light being on and the diffuser gets charged enough to be surprisingly bright at night for minutes at a time. I can successfully navigate a pitch black area indoors from just the diffuser glowing. I also carry the light with the diffuser on 24/7 because the light is still bright enough it to use for general flashlight purposes. This gives me the option to have the diffuser on or off whenever I want/need it, and the silicone is high enough quality that it will last a long time if properly looked after. Overall, I love this flashlight and I will be buying a few of them this holiday season to give out as gifts!
T**W
Good deal!
I like it, for its size it puts out a good beam of light. It’s small enough to carry on a key chain or in your pocket. Very handy.
A**L
Watch Out! Don’t buy.
So, I bought this a year ago and really loved it. The build quality is incredible. It seems well made and able to survive a nuclear explosion. The light is fantastic! Incredibly bright. On on little AAA battery, this thing will light up spaces to near daylight levels. The design is also excellent. The on and off button is at the bottom, covered in rubber, easy to use, and convenient. Then, it all went to hell. As expected, the light stopped coming on one day, and so I dutifully removed the cap to get the battery out to replace it. I use the flashlight so often that I couldn’t be without it. I had to change the battery immediately. Unfortunately, the battery couldn’t be removed. It appears that, long ago, the battery may have exploded in the case of the flashlight, and got stuck inside. So, despite being one of the best mini-flashlights I had ever used, it had quickly become useless to me. There’s not much point in buying a flashlight if it can’t be reused. From what I can tell, this may be a design flaw. Something about the way the case is designed, causes good battery to become engorged, and then stuck to the interior of the case. It’s too bad, but it means I can’t recommend this. Back to the drawing board for me.
J**Z
Excelente
Excelente producto, es la tercera que adquiero por qué las regalo ya que es un buen producto y les encanta
A**O
Muito bom o produto
Excelente custo benefício
S**A
Minha avaliação
É um produto de qualidade. Recomendo.
J**Z
Excelente producto
La mejor relación calidad precio
Trustpilot
4 days ago
1 month ago