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WUBEN E2 Pulse Keychain Light Drops to $12.99 on Amazon
WUBEN's 150-lumen E2 Pulse keychain light is $12.99 at Amazon, down from $16.99. Here's who should buy one and who should skip it.
The WUBEN E2 Pulse is $12.99 on Amazon right now, down from $16.99 on the same listing. WUBEN's own store has it at $19.97 against a $29.99 list price, so Amazon holds the better number by seven dollars. Both storefronts showed stock when I checked.
Price is only part of the appeal. The light weighs 10.7 grams with its battery installed, roughly the same as a pair of wireless earbuds, and it measures 41.4mm long. At that size and weight, a light stops being something you remember to pack. It just stays on your keys.
Three light groups in a 41.4mm body
The main beam peaks at 150 lumens, with medium at 50 and low at 5 for close work. WUBEN rates the beam's reach at 26 meters, which is plenty for doorways, tents, a fuse box, or a dark stretch of sidewalk. Output on high steps down after the first minute. That's a common trade in a body this small, since there's little room for thermal headroom or battery capacity.
One long press cycles through the groups: main beam, then side light, then signal modes. A single round button runs all of it, so you can work the controls with gloves on without looking down. Keeping the interface this simple suits a light this size. A buried menu would defeat the purpose.
The side white light puts out 80 lumens on high and 10 on low. It's aimed at reading, desk work, and digging through a bag. The same side light hosts a heartbeat mode, a slow breathing glow that pulses through the translucent shell. Combined with the glow-in-the-dark body, it's easy to locate on a nightstand or at the bottom of a pack.
Signal modes that go beyond novelty
The signal modes are where this light stops feeling like a toy. A red beacon marks a position, a red and blue flash handles roadside warnings, and the breathing glow doubles as a visibility light on a collar or zipper pull. Drivers tend to notice a small pulsing light well before they pick out a static reflective tag, and that's the real case for this mode.
Built to stick, clip and take a knock
A magnetic tail lets the light grab a hood, a breaker panel, or a fridge door, which frees both hands for the job. Ceiling work, engine bays, and dark closets all tend to go better hands-free. Snap it on, aim the side light, and get on with it.
The body combines an aluminum alloy frame with a polycarbonate shell, and WUBEN rates it IP66 against water jets and dust. The drop rating is 1.5 meters, which covers the kind of falls a keychain light realistically takes. A rainy night walk shouldn't be a concern.
WUBEN offers a five-year warranty and a 30-day return window. Registration adds repair support for build faults. For a light that costs less than a sandwich lunch, that's more backing than most buyers expect.
Power, carry options and colors
Power comes from a built-in 120mAh lithium polymer cell that charges over USB-C, the same cable most phones already use. WUBEN quotes about seven hours on low, one hour on medium, and roughly thirty minutes of stepped-down output on high. A charging cable and a key ring come in the box.
The package also includes a quick-release buckle and a chain. Worn as a necklace, clipped to a bag, or hung from a zipper, the light stays within reach without a pocket check. It comes in Gradient Black and Gradient Red, and both colorways glow after the lights go out.
What the ratings say
On Amazon, the listing sits at 4.3 stars across 1,179 ratings in my check. Feedback on WUBEN's own page averages 4.95 across 21 reviews. That's a much smaller sample, but it points the same way. Buyers seem to agree the size claims hold up. For small lights, the real test is whether people keep carrying them, and at 10.7 grams this one has the easiest case to make.
What the discount changes
Amazon had this light at $16.99 before the drop, so $12.99 is four dollars less. WUBEN's direct price of $19.97 still beats its $29.99 list, but Amazon wins the comparison tonight. Deal pricing at this level can move without warning, and neither listing shows an end date.
If your keys carry no light at all, or a phone flashlight keeps losing out to full hands and a draining battery, this is an easy pickup. Dog walkers and night commuters get the clearest win, since the signal modes suit exactly that use. At this price, a second one for the glove box is a simple call.
Skip it if you need real throw, because 26 meters runs out quickly across open ground. Skip it too if long high-output runtime is the priority, since 120mAh limits how long the top setting lasts. Buyers who want more output in a flatter pocket light could look at WUBEN's own G5 at $19.99, though it gives up the keychain size that makes the E2 Pulse worth carrying.
At $12.99, the Pulse is priced like a spare and light enough to carry like one. The real test comes a month from now, when it's still clipped to the ring.
