WUBEN E2 Pulse Review: More Than a Keychain Flashlight
Keychain flashlights usually follow a familiar recipe: make them small, give them one LED, add a button, and call it a day. The WUBEN E2 Pulse takes a different route.
At just 41.4mm long and 10.7g, it's genuinely tiny, but it packs three lighting systems: a forward-facing white beam, high-CRI side lights, and red/blue signal lighting. Add a magnetic tail, USB-C charging, and a body that glows after dark, and this little light starts feeling less like a keychain accessory and more like a miniature EDC tool.
After looking closely at what it offers, here's our WUBEN E2 Pulse Review: More Than a Keychain Flashlight.
Tiny Size, Surprisingly Useful Design
The first thing you'll notice about the E2 isn't its output. It's how little space it takes up.
Measuring 19 × 14.6 × 41.4mm, the E2 fits on your keys, disappears into a coin pocket, or attaches to a necklace with the optional accessory. At 10.7g with the battery, you'll barely notice it's there.
The body uses PC with an aluminum-alloy bezel and a textured gradient finish. More interestingly, the shell glows in the dark. After absorbing light, it gives off a soft green glow, making the E2 much easier to spot beside your bed or inside a dark bag.
A gimmick? Maybe a little. Useful? Absolutely.
Three Lights in One Tiny Package
Here's where the E2 gets interesting.
Main Light: Up to 150 Lumens
The forward-facing W3535 5000K LED offers multiple brightness levels and reaches up to 150 lumens, with a maximum beam distance of 26 meters.
That's not search-and-rescue territory, obviously. But for finding dropped keys, walking to the car, checking a dark hallway, or navigating around camp, it's plenty for something this small.
Side Light: Better for Close-Up Tasks
Two custom COB LEDs provide a 5000K, CRI 90 side light with 80-lumen and 10-lumen settings.
The broad illumination works nicely when you don't want a concentrated beam. Stick the magnetic tail to a suitable metal surface, and the E2 becomes a tiny hands-free work light.
There's also a heartbeat breathing mode, where the side light rhythmically fades in and out. It's not essential illumination, but it gives the E2 a bit of character that most keychain lights simply don't have.
Red and Blue Signal Lights
The third system adds a red beacon and alternating red/blue flashing modes.
Rather than everyday illumination, these are intended for visibility, signaling, or warning situations. It's another example of WUBEN squeezing an unusual amount of functionality into a 10.7g package.
USB-C Charging Makes Sense
Nobody wants another proprietary charging cable floating around the house.
The E2 uses USB-C charging for its built-in 120mAh Li-ion battery. That battery is understandably small, but that's the trade-off for making a flashlight light enough to hang around your neck.
It also features mode memory, so you don't necessarily have to start from scratch every time you switch it on.
What Comes in the Box?
Wuben E2 Specifications
Where to Buy the WUBEN E2
WUBEN Official Store — E2 + P5 Accessory Bundle · $19.99
Shop E2 + P5 Bundle →
Amazon — E2 · $12.99 | P5 Accessory · $9.99
Buy Now at Amazon →
