Likely confusing by accident.
They are the same company. They were originally named Fireflies but I think they ran into trademark issues with that name so they changed it to FireflyLite. Many still call them Fireflies.
ff-light.com was their main website, then recently they opened a new website firefly-outdoor.com. They posted about it here: https://budgetlightforum.com/t/-/71672
Originally I think the purpose was just to launch a new store on a new, presumably easier/cheaper-to-run platform/hosting service, and close the old website once everything was moved over.
Now they’ve closed the new website for maintenance (you just get a “coming soon” message now), as it’s apparently slated to be the site they use for lights that ship from their upcoming US warehouse, and they will keep the old website for lights that ship from China.
Presumably, both the new website/US warehouse and the old site/China warehouse will offer the same lights. It’ll likely work how other companies do it - the US site/warehouse will keep a larger stock of standard/popular configs, and the China site/warehouse will be more likey to have less-standard configs in stock, and if you have any special requests (like you want a different optic, specific CCT or different LED etc.) that are built-to-order, they’ll probably ship from China.
It’s kind of exciting, they are a really interesting enthusiast-oriented brand and it looks like they’re really trying to scale up operations, get more lights out, and have more consistent availability (and hopefully better QC and CS), along with a number of new releases in the coming months (one or two LEPs and a medium thrower IIRC, maybe more?).
However, they are a VERY small team and they’ve only been around making lights for ~5 years, so it seems they’ve been running into some significant teething problems, QC, shipping, and communication issues (some of which have been present since their founding) that they still have to work through - the two-website confusion being one of them.
These issues have led to a fair bit of mostly-deserved criticism recently, but I am personally very hopeful that they can get things into to a smoother state in the coming year or two, improve communication (this is a big one IMO), and sell more cool flashlights. Despite the issues, I get the impression they are dedicated engineers/designers who want to make really neat enthusiast-oriented lights at good prices, and I want them to succeed.
And as a side note, FireflyLite, if you’re reading this, PLEASE make a tail-switch light! I think something like a tail-switch PL09 Quad would be so awesome!
I’d also love a ROT66 gen 3 with a similar 3x18650 size, and a more efficient driver like in the E12R.