i3E EOS PMMA TIR Lens AAA EDC Flashlight 90 Lumens Compact Keychain Flash Light for Night, Camping (Auspicious Clouds)

The OLIGHT i3E EOS may be small, but it packs a punch. While the cost is on the higher side for such a tiny flashlight, the quality build, premium materials, and thoughtful design more than make up for it. Pros Excellent Build Quality: Feels solid and durable despite its size. Premium Materials & Design: Sleek, well-crafted, and built for longevity. Bright Output: Surprisingly powerful for such a compact light. Durability: Holds up well to everyday use—perfect for keychains or EDC. Ships with Battery: Comes ready to use, with a plastic cover over the battery to prevent power loss during shipping. Trusted Brand: OLIGHT consistently delivers high-quality lighting products. Cons Price: Higher than generic mini flashlights, but worth it for the quality. Battery Installation: Can be a little tricky to install the battery initially. Bottom Line: If you want a small flashlight that’s bright, durable, and backed by a reputable brand, the OLIGHT i3E EOS is an excellent choice. Highly recommend for anyone looking for a reliable EDC light.

Purchased on Feb '26 from olight direct. Arrived Fast, Minimal packing/plastic waste. Lifetime warranty. Came with battery. Size of an AA battery. The led is bright, brighter than my 2xAAA StylusPro so I can see how it'll eat batteries. I needed a small keychain light, this definitely fits the bill. The LED PCB is unprotected so I'll keep an eye on durability, and will update with any issues, but the oring seems snug. Mom is getting one for her mailbox key ring so I'll have a sample size of 2 to report on. Edit: after a few days I've noticed it gets a little warm. Not ouch hot, just "Hmm, that's a little warmer than expected." Gets warmer if you set it down on plastic or cloth, holding it keeps it cooler as your hands actively cool it.

I wanted to try a few AA & AAA single cell powered lights to keep handy in my laptop bag and/or on my key chain in my pocket to use anywhere the need comes up, which in my case is a fair bit. After trying a few of these "Every Day Carry" type mini-lights, this is far and away my favorite. It does not have any infrequently used adjustment features I will forgot how to use or which annoy me by coming up in the wrong operating mode, it's smaller than the others I tried out, so it does not add much bulk at all to my key fob (It's dwarfed by either of my 2 car key fobs). Simple twist on/off and a really bright light output. This is a basic EDC flashlight and it excels in that role. And just so I wasn't clear enough, it is really tiny; barely larger than the AAA battery inside. Battery life has been great although I haven't kept track and so far I'm still on my original Alkaline battery installed a few months ago. I rarely use it for more than a few minutes at a time. Sometimes multiple times a day and sometimes not for a week or more. After a few minutes of on time, it will get noticeably warm due to its high light output. That said, if I need a light for much longer than that, it's usually where I need a broader beam and I have bigger and much bulkier units for that. I know a number of reviewers have complained the top has unscrewed and come off, some others have complained it has turned on in their pocket. I keep this in my pocket all day long if I am out of the house and have never even approached either of those issues. I give it less than a quarter turn to turn off and it has never come on by itself or come apart. It's possible those users damaged, lost, removed or had the little O-ring in the wrong groove too far back. It's that O-ring that provides its water resistance and also adds friction to the LED housing that screws on/off and to provide both battery access and the on/off switch function. I haven't gotten it any wetter than from being out in the rain briefly so I can't speak to the water resistance, but I'm not planning on swimming with this or using it underwater. It's rated similarly to other EDC lights, so it should be fine submerged up to a couple of feet deep if the O-ring is intact. Can you break it? I'm sure the answer is yes, but for my purposes and in my pocket, all it's showing is a little wear and tear on the otherwise durable finish from constant rubbing against my keys and pocket change. If and when it ever breaks, I will reorder immediately. To recap - small, did I say small? I meant tiny. - powerful little light for my near distance use (usually within 1-3 feet for me), but the beam will illuminate to quite a distance - Super simple to use and no extra features you probably won't use or don't much matter in a light this small for basic use - Good Battery life, and compatible with NiMH rechargeable AAAs. You can't use a 10440 Li-ion as the voltage is too high for its LED when fully charged, plus it will likely get too hot to hold if you do. If you really need Li-Ion, look to another light. - Inexpensive - Overall a five star for its super convenience, ease of use and function. 2 year update - STILL my favorite! In 2years of use. I've had the top unscrew in my pocket once and have had it turn on once on its own in my pocket. I've maybe missed not having a tail switch vs the twist on/off maybe a couple of times, but the size and weight are just perfect and ditto for light output. I've tried AA size, tail switch types, rechargeables and always come back to this one. Paired with NiMH rechargeable AAA batteries, I usually go for months between battery changes. The others stay handy on my desk or bench, this one lives on my key chain always on my belt or in my pocket and goes wherever I go so I'm never without a light and neither is anyone else who is alongside me at work!

We do towing, these babies are great cuz they are small enough to hold in your mouth, yet powerful! I've bought probably at least 10. Every xmas my guys get 2 more, I've bought them for everyone in my family! Also great cuz u can keep them on your keychain, sucks when u need light and have NONE! Batter life is great!

I'm amazed that you get 90 lumens out of such a tiny keychain light!! The exterior design is cool looking too. I can't think of a much better keychain light. Uses just a single AAA battery and will be easy to replace when it goes dead. You don't want the hassle of recharging a keychain light battery, imo. All in all, this is a cool, good performing, and inexpensive light that I really like for my keychain.

I have bought maybe six of these, and the two oldest have burned out after a lot of use. The others are working just fine, and are so incredibly tiny and useful I will probably buy more for the glove compartments and kitchen drawers. One brightness, but it makes up for that by being tiny and light, and solidly built. Very basic but very functional, and at 10 dollars a solid buy. Do note that the Olight store on the web can have sales and a wider variety of colors!

For everyday carry, I much prefer the on/off function of a flashlight to be controlled by turning the "head" of the light, as opposed to a click button somewhere - it's much less likely to turn on by accident and this one does that. Geez, this thing is incredibly bright, especially considering just how small the flashlight really is! Although, it's not as bright as a 2 cell LED Maglite is, it's more than bright enough for most casual users. I've already changed out the key chain ring for a larger one, because I like to be able to use one of my fingers to hold the light, as opposed to holding it in my hand. For $10, this is an amazing little light, and really hope that it lasts a long time!

This is a review of the Olight i3E EOS 90 Lumen Flashlight in Black. I am an enthusiast of flashlights and coolers. This flashlight meets my criteria perfectly well: 1) small as possible, 2) bright, 3) lightweight, 4) uses only 1 aa or aaa battery, 5) is waterproof, and 6) has a simple interface. Positives: 1. This is tiny, even more so than the Fenix E05 (which was already tiny). 2. This is very bright and appears to be about the 90 lumens that it claims. 3. This is even lighter than the Fenix E05. This is the lightest AAA keychain style flashlight that I have come across. You can tell by my reviews, I have had a lot of experience with flashlights. Out of all of the AAA flashlights, this is the first that I do not mind having on my keychain, which is a very lightweight setup. 4. It uses just one AAA battery, which is common in other things such as your remote controls for the television. 5. It has the same o-ring design as other lights in this category with the typical IPX-8 submersible standards. 6. It has the most simple interface, just twist for on and twist back again for off! That is my favorite feature of this light. With other lights, 95% of the time is used on the "high" level. All of my other flashlights, with exception of the Fenix E11 which is my favorite light (too bad it has already been replaced with the E12), require users to cycle between multiple brightness levels along with SOS or Strobe modes to get to your desired setting. This is just simple on-and-off. Negatives: - None. Neutral: 1. The Fenix E11 is my favorite AA flashlight (and overall flashlight) being the smallest AA flashlight I have come across and it has my favorite feature of a simple CLICK of the button switch to turn on and turn off. This Olight i3E is likely my favorite AAA flashlight as it has just one setting of "high" and has one simple step of TWIST tight to turn on and loose to turn off. Both flashlights have a simple one-step interface. However, I prefer the easier to use (especially with one hand) CLICK switch to the TWIST switch. This is just my preference. Some may argue that the twist switch is more reliable, which has merit to it. Other will say that a click button switch can be accidentally activated if bumped into something, which is possible. Lastly, if this flashlight had a click button switch on it, it would likely be longer in length. Despite all of these points, I have found the simple click is easier to use with one hand and I have never had the Fenix E11 accidentally turn on whether in my pocket or in a bag. I have only had this light for a couple of weeks as of March 12, 2016. It is too soon to determine if this is a reliable flashlight, which will require continued use over time. So far, it has been attached to my keychain, which stays in my pocket or gets thrown into a bag for most of the day. An update will be provided in several months to report on how this light does. Previous experiences with the Fenix E05 has been disappointing as at least four of the flashlights that I purchased (for myself and family members) failed within a year's time. These lights were all replaced with the larger Fenix E11, which all continue to work, as does my Fenix LD20. Though the other lights continue to function well, I must admit that the failures of the E05 really hurt my confidence in Fenix. Overall, I rate the Olight i3E EOS 90 lumen flashlight a 5.0 out of 5.0 stars. It is the simplest, tiniest, lightest, single AAA light around. I use it just about on a daily basis. It is the first AAA light that is comfortable enough to have attached to my keychain, which go everywhere with me. UPDATE June 30, 2016: This is easily my favorite AAA light ever. In addition to the black version that was originally purchased, I also picked up the copper version ($20) and two of the silver versions ($13 each). This should show you how much this flashlight is appreciated. My wife took over the beautiful, but heavier copper one. My favorite is the silver version, which I put in our emergency kit. Once again, this is the simplest, tiniest, and most lightweight AAA flashlight I have owned. Best feature, according to my preferences, is the one setting of full power mode. With other lights, too much time is wasted on finding the desired setting. With this one, you know that there is just one full power mode before you even turn it on. UPDATE July 8, 2016: Attached are some pictures to compare the Olight 90 Lumens i3E EOS in black. A size comparison with the 4Sevens Preon 2 in Green, the 4Sevens Preon 1 in solid Titanium, and the Olight i3E EOS in black. The other pictures compare the beam shots for 3 lights in high mode at a 20 inch distance from a white wall (the Preon 2 on the left, the Preon 1 in the middle, and the Olight i3E EOS on the right). I believe Preon 2 claims 192 lumens, Preon 1 was 80 if I recall, and the Olight i3E is 90 lumens.