Olight USA offers a pack of three ink refills free of charge (normally it costs about US$10), but you need to order something in order to get the free ink refills.
Since all the pens are equally horrible at writing, I was hoping someone knew if the cartridge is a standard size and I can buy one that writes consistently.
It’s weird, they’re smooth with good resistance, then the ball stops turning. It’s like there’s wax or something on the paper, but I’ve tried all sorts of paper. Maybe I’m just a greasy Italian.
Odd, a bunch of pens I got from the bank (freebies, with keychains, door-openers, etc.) as well as some pens a realtor friend gave me, all have the same problem. They tend to “skip”, as if writing on tainted paper or something.
All my old cheap Bics, PaperMates, etc., still write fine on the same paper, so it’s definitely the pens.
My preferred EDC pen/refill ink type is Pilot's Gel in a .5mm tip. I suggest searching through JetPens comprehensive online store to match up the size and style of refill you'll need for your OPen. The link takes you directly to the Refills page. I hope that helps!
Olight’s frequent use of proprietary batteries and sealed flashlights with non replaceable batteries is not only a turn off, it’s really damaging to the hobby.
I recently took apart an Olight i5TEOS, and it’s not friendly at all in there. The only way to get into it was prying out and damaging the plastic lens a little. Driver and LED star were installed in a basically permanent way, and doesn’t leave much room to work with, with everything needing to be shoved in through the bottom. Original LED was a horrible blue tint. I still might be able to save it and get a working high CRI flashlight out of it, but I definitely wouldn’t get another Olight flashlight with the intent of opening it up.