Olight M2R for ~110 USD at that time. Never regretted it.

Light I regretted buying most was Klarus XT2CR. I HATE the interface. Switch broke after only a couple of weeks. Customer service of hell (Banggood AND Klarus). Soldered a new switch from Ebay in at the end myself. Now it’s just shelved. Literally months later I received a received a TWO replacement ones without notice from Klarus. One without a switch (what am I even supposed to do with that. The switch is broken, the rest is fine). A week later one with a switch. Gave that to my little cousin.

Other lights I kinda regret buying are Fireflies E07 (I just bought it because it looks beautiful but I have 0 use for it) and… (unpopular opinion inc) the FW3A for a multitude of reasons. I tore it apart and plan on modifying the firmware or try to get Narsil to work on it… But I plan that since the first week after receiving it and I didn’t find the motivation to do that yet So it’s at least good for that.