Prometheus Lights is known for delivering best in class design and performance in every product category. We mean this literally...you won’t find higher quality from any other brand at any other price. If we can’t do it better than everyone else...we don’t do it at all.
Beta-QR Flashlights
The first & finest quick release keychain flashlight. Accept no substitutes.
prometheus lights
Our purpose
We strive to create the finest products on the planet, simply because we care, and we know you do too.
foursevens by prometheus lights
our purpose
We strive to create tools that you can count on...because life is uncertain...and we have your back.
shop by collection
Not sure what you are looking for? Try our curated collections that suit any lifestyle or mission.
Everyday Commentary: Beta Magnetic
"Modern flashlight design seems to be pushed forward by a pitchman’s version of what we want as opposed to what we actually want. What we want and what we actually need are pretty simple—we want a light that turns on every time, runs for days, provides accurate illumination, and is easy to use...Only Jason Hui would be bold enough and confident enough to release a light this off trend, but we all are better for it. This is an amazing light and in the role of a keychain light you won’t find better." --Everyday Commentary
Outside Magazine Online: Mini MKIII
"A good quality, modern flashlight is one of those gifts that works for pretty much anyone. I’ve given them to my mom, several of my in-laws, and a bunch of friends. The FourSevens Mini is still my favorite. It can put out up to 900 lumens in a package that’s not much larger than a chapstick. And you can run it with a pocket clip, keychain ring, or as a headlamp, and it has a magnet in its base so you can use it as a work light." --Outside
Everyday Carry: Psi Earplugs
"Prometheus has a long history of delivering quality products for everyday carry both through crowdfunding and their own site. If you’re looking to step up your game and ditch the cheap earplugs you’ve been carrying around so far, or if you’re looking to finally buy some hearing protection for the first time, the Prometheus Psi is a good place to start." --Everyday Carry