Wuben is running a pre-sale from August 24th to August 27th, buy here now: Wuben E2 PULSE 10.7g Compact Mini EDC Keychain Flashlight
Quick verdict
If you want the absolute lightest and smallest, the Wuben E2 is hard to beat. Still, to achieve this low weight and small size, it sacrifices runtime, power, practicality and more.
- Star rating: 3.75/5
- Most impressive: Size
- Biggest downside: Sacrifices too much to achieve the size and weight
I recommend buying this flashlight if you want the absolute smallest, or need a flashlight that can be worn on a necklace. If you, however, can deal with something a bit larger, you will get a much more useable flashlight in terms of power, runtime, thermals, comfort when carrying and more. Examples of such flashlights include the Wurkkos TS10 (SG) and the Lumintop FWAA.
Purchase here:
- Wuben’s official website
- Amazon
Table of contents
- Introduction
- Pricing, availability and options
- Packaging and what comes in the box
- Held in hand: build quality, size, weight and handling
- Carry
- User interface
- LED, light quality and beam
- Performance, battery, charging and runtime
- Competition and comparison
- Conclusion
Introduction
Disclaimer: This flashlight was sent to me for free by Wuben for review. All opinions are my own.
Such a tiny flashlight, I thought when I first laid eyes upon the Wuben E2. This is a flashlight that takes two qualities to the extreme: size and weight - making many compromises to achieve this. Even infamously compact flashlight such as the Wurkkos TS10 and Lumintop FWAA do not stand a chance against this little gadget in those regards - but can they still make up for it with better performance and practicality?
In this review you will learn all about this tiny, tiny flashlight, and whether or not it is the right choice for you.
Pricing, availability and options
When buying the E2 you can opt to add the P5 bundle. In addition to the E2, you then also receive a beaded chain with a quick-release clip, allowing you to wear the flashlight around your neck like a necklace. You buy the E2 and P5 from either Amazon or Wuben’s own website. Below is the price-list:
Amazon
- E2: $12.99
- P5: $9.99
- Bundle (E2 + P5): $19.99 (Until September 10th)
Wuben’s website
- Bundle (E2 + P5): $19.99 (Until September 10th)
After September 10th 2026, the price of the bundle rises from the initial launch price to the regular price of $22.99.
The E2 and P5 can be bought from August 24th. This is the pre-sale period, offering tripple members points and faster delivery (presumably only on Wuben’s website). After that, the normal sale starts on August 27th.
Packaging and what comes in the box
I am not exaggerating when I tell you that the box for the E2 is smaller than 99% of flashlights themselves. It is very simple, with a picture of the E2, its name and Wuben’s logo on the front, with some specifications such as brightness and runtime. Inside the box you find everything you need:
- The Wuben E2 flashlight
- One USB-C to USB-A charging cable
- One key ring
- User manual and warranty card
P5 bundle: - Beaded chain (necklace)
- Quick-release clip
Held in hand: build quality, size, weight and handling
The E2 is so small that it is almost hard to grip right. It has a plastic body, with a switch at the front and a USB-C charging port with a (waterproof?) cover over, at the back. The flashlight feels very light, but not cheap. Holding it in hand, you barely feel the weight. The E2 is rated to IP66, meaning that it is both waterproof and dustproof. It can also withstand drops of up to 1.5 meters, according to Wuben.
I believe you should not put too much trust into numbers to evaluate if a flashlight feels good in hand or not. Still, it can be a good indication and is important for some. Therefore, I have listed the weight and size of the Wuben E2 below:
- Weight: 10.7 grams
- Width: 19 millimeters
- Length: 41.4 millimeters
- Height: 14.6 millimeters
Like I told you: tiny!
Carry
You can “carry” this flashlight in four different ways:
1 Holding it
I have already briefly covered this way, but will elaborate. The plastic does not slip easily, so after you first have it between your fingers, you will not lose it. The small size makes it a little awkward to hold, and you will likely hold it between just two or three fingers.
2 Necklace
Wearing the necklace is quite comfortable due to the extremely low weight. Installing the E2 onto the quick-release clip is very easy, but still feels secure as the E2 holds perfecly in place.
3 Magnet
On the underside of the E2 a magnet is installed. It easily holds the flashlight attached to surfaces, and can be very useful. This function can be very useful if you need a backup light source to attach different places while keeping both hands free.
4 Key ring
With the key ring you can attach the flashlight to your keys. Considering the size and weight, the E2 is very well fit. This especially applies when comparing it with more capable models which are heavier and bigger. Usually, I would choose something bigger for the notable step-up in performance, but as a keychain-light, I think the compactness is more appreciated.
User interface
The UI is very simple to use. The flashlight offers three different “lighting modes”, where you can adjust the brightness in two of these. The flashlight is operated through only one button at the front, and I have made a list showing you how use it:
- One press turns the flashlight on/off
- When on, hold to adjust the brightness/output
- Press twice quickly to change between the three “modes” (front, side white, side red/blue)
- From off, hold to activate the battery indicator for five seconds
That is it; no more. It packs a lot of functions into such a small flashlight, which is very impressive, but also manages to keep it simple to operate. Still, there is one caveat.
The “police lights” (red and blue) and red beacon are more of fun gimmicks rather than actual useful features. The LEDs for the red and blue lights are used in the battery and charging indicator, and Wuben likely thought that they could add this feature since the LEDs were already installed. However, I think this mode just clutters the UI. When switching “modes” between the front and side white lights, I always have to skip though this mode. While I recognise that some might like this “fun” feature, I will likely never find a real use case for it myself.
LED, light quality and beam
As I have mentioned, the E2 has three “modes”. I have made a table below to show you these “modes” and what they can do:
| Mode | Placement | Color | Output levels |
|---|---|---|---|
| Front | At the front | White | Low, medium, high |
| Side | Both sides of the flashlight | White | Pulsing, low, high |
| Red and blue | Both sides of the flashlight | Red and blue | Flashing (red and blue), beacon (red) |
The light at the front has a relatively balanced beam. The hotspot is surprisingly small with decent throw, while the spill lights the ground ahead. I do not recognise the LED used, but it seems small and cheap. Based solely on what my eyes see, the light is cool-white (about 6,500 kelvin) and low CRI (colors do not “pop”). I am not able to notice any major tint-shift, and the DUV is about 0 (neutral). The E2 has a rippled smooth reflector, like I have seen other Wuben models use.
The white lights at the side look nicer. These are very floody, and show other people where you are as much as reveal what is in front of you. The light is pure neutral-white (5,000 kelvin) and very pleasant. I do not see any tint-shift here either, and the DUV is about 0 (neutral) here as well. What surprised me is the CRI. I do not know if it is technically “high CRI”, but it renders colors quite well; definitively better than the light at the front.
Again, this is just what my eyes are able to tell. It is not measued by any equipment.
The “police lights” use red and blue LEDs. They always flash, and you cannot adjust the speed or brightness of them. The red beacon has a slower flashing rate, but is only in red. This mode is not useful for lighting things up, but can perhaps grab other people’s attention, if that is needed. The fixed brightness is quite high, especially conidering the size of the flashlight.
The beam patterns of the side lights are irrelavent in my opinion. They are very floody, and give away your position better than they illuminate the surroundings. The pattern for the front light is very nice.
Above you see the beams from the front, side and “police lights” (only blue shown here; red and blue are never on simultaneously). These are taken by a phone camera, and are not of too high quality. The exact color and beam profile is difficult to capture accurately, and I want to emphasize that this is only for reference. In person I think the color looks different. In real life, I see no green with my own eyes, and the color is somewhat different; cooler than in the photos. The pictures are taken with the flashlight’s second brightest modes (for the front and side modes, the blue and red has a fixed brightness), on a white surface (paper).
An added bonus is that this flashlight is phosphorescent, meaning that it glows in the dark. This is a cool and sometimes useful feature.
Performance, battery, charging and runtime
Wuben have equipped the E2 with built-in charging, something even much larger lights cannot brag about. There is included a small USB-C to USB-A cable, fitting into the USB-C port of the flashlight. To reach the charging port, you have to remove the protective cover, which is a little fiddely because of its small size.
Wuben claims that the E2 can complete a full charge in 1.5 hours, which is quite reasonable. While charging, the side lights are red until they change blue as the charging is finished. When holding the button from off (while not charging), the battery indicator activates (side lights), and you see the following:
- Blue: 90% or above
- Flashing blue: 40% - 90%
- Red: 15% - 40%
- Flashing red: 0% - 15%
The Wuben E2 uses a built-in 120mAh lithium-ion polymer battery. This is a very small battery, but decent concidering the size. To better understand the capacity, I have made a table below to show the performance and runtime of the flashlight. This is for the front and side white light, since it is what I think most people will use. Under the “my guess” sections, no equipment is used to measure; it is solely based on my eyes, as well as my personal experience testing flashlights.
Performance table
| Mode and specified brightness | Specified runtime | My guess - brightness | My guess - runtime | Comment |
|---|---|---|---|---|
| Front: 5 lumens | 7 hours | 3 lumens | 15+ hours | It can likely do more than 7 hours, but is a bit dimmer than I would expect from 5 lumens. |
| Front: 50 lumens | 1 hour | 50 lumens | 1 hour | This seems very reasonable. |
| Front: 150-50 lumens | 1 min + 30 min | 150 lumens @ turn-on | 1 min + 50 - 55 minutes | Also seems quite reasonable, but 1 minute of 150 lumens cannot drain as much as 30 minutes of 50 lumens. |
| Side: “Heartbeat flash”, lumens not specified | 17 hours | Dim, maybe 1 - 3 lumens | 20+ hours | Again, seems reasonable. |
| Side: 10 lumens | 3 hours | 5 - 10 lumens | 5+ hours | Difficult to measure with such a floody side light, but seems somewhat reasonable. |
| Side: 80 lumens | 30 minutes | 50 lumens | 45 minutes - 1 hour | Again, difficult to measure, but seems somewhat reasonable. |
The flashlight steps down quite early, but never gets hot. The thermals are very decent!
Competition and comparison
With the E2 being so small, there are few direct competitors. Still, we will take a look at other infamous small flashlights and see how they stack up. I have made a table below so that you can easily compare the flashlights:
Comparison table
| Wuben E2 | Wurkkos TS10 V1 Brass | Wurkkos TS10 SG (SFT25-R) | Lumintop FWAA | Lumintop Frog 3.0 | |
|---|---|---|---|---|---|
| Do I own the flashlight? | Yes | Yes | Yes | No | No |
| Approximate price | $13-20 | Discontinued (~$25) | $24 | $40 | $25 |
| Length | 41.4mm | 71.5mm | 72.3mm | 70mm | 56mm |
| Weight with battery | 10.7g | 88g | 48g | 56g | 21.4g |
| LEDs | Front: 1, side: array of many | 3 | 1 (SFT25-R) | 3 | 1 |
| Claimed lumens, throw | Front: 150 lumens, 26 meters | 1400 lumens, 130 meters | 1650 lumens, 294 meters | 1600 lumens, 100 meters | 700 lumens, 112 meters |
| Batteries, charging | Built-in 120mAh, built-in USB-C | Replaceable 900mAh 14500, external charger is needed | Replaceable 900mAh 14500, external charger is needed | Replaceable 14500, external charger is needed | Replaceable 300mAh 10280, built-in USB-C |
So, which should you buy?
Each flashlight in this comparison offers something unique, but to help you choose, I have selected the winner in a few common categories below:
Most powerful: Wurkkos TS10 SG
The TS10 SG offers almost unmatched lumens and especially throw at its peak, and sustains a very usable output as well. It is very compact and light, even though there are smaller and lighter alternatives. It does not offer USB-C charging, losing it a few points of practicallity, but is still very easy to operate. With Wurkkos being a budget brand, the price is only a plus here.
Smallest and lightest: Wuben E2
If you want the smallest and lightest, sacrificing almost everything else, the Wuben E2 is the right choice for you. Being made of mostly plastic, unlike all other models, it manages to keep an extremely low weight. Impressively, it includes built-in charging, something none of the largest competitors (TS10s, FWAA) have. It also beats every other competitor being the only one that can be worn as a necklace. Sadly, the E2 is the only flashlight with a battery that is non-replaceable.
Most practical: Wurkkos TS10 SG
Here the Wurkkos wins again. Even without built-in charging, it is still a very practical and pragmatic flashlight. Its weight and size makes it effortless to carry around, while not too small to hold. With size and weight in this class, I do not care too much about the extra 37 grams or 31 millimeters; it is anyway small and light enough for most use cases. Only if you need a flashlight to use on a key chain or as a necklace, this low of a weight and small size as the E2 offers, matters much.
The beam of the TS10 SG has amazing throw, but is still floody enough to cover most needs. The user interface (Andúril 2) is more difficult to operate, but offers much, much more, even allowing for RGB AUX lights. None of these flashlights are very expensive, but the Wurkkos is still well priced in my opinion.
Conclusion
The Wuben E2 is a flashlight for those needing the extreme, in this case compactness and lightness. It is very easy to use and operate, and has packed many features into it (maybe one too many). Still, it is more of a fun gadget. For the size it has decent runtime and good power, but compared to the competition, a slightly larger flashlight offers much more. It is also difficult to carry around such a small flashlight clenched between your fingers for long periods of time.
Pros:
- Size
- Weight
- Portability
- Can be worn as a necklace
- Key ring
- Power
- Built-in charging
- Magnet in the tail
- Nice beam pattern
- phosphorescent (glow in the dark)
Cons:
- Tiresome to hold for prolonged periods of time
- Though good for its size, its power and runtime are inferior to the larger competition
All in all, I give this flashlight a fair rating of 3.75/5 stars.
You can buy this flashlight from Wuben’s official website: wubenlight.com
