I've been using the K KENZHOU clip-ons for a few weeks now, and they're a bit of a rollercoaster. The blue light filtering is legit—I noticed less eye strain during late-night work sessions, and colors don’t get that weird amber overdose like some other filters. They’re featherlight too; I forgot I was wearing them halfway through a Netflix binge.

But here’s the catch: the clips are *fussy*. On my thin wire frames, they slip off if I so much as sneeze. I had to MacGyver them with rubber tubing to stay put. Also, the lenses scratch if you breathe on them wrong—mine arrived with micro-scuffs right out of the box.

The 2-pack is a steal though. My partner stole the second pair for gaming, and we both agree: they work better than expected for $20 (despite the janky clips). Just don’t expect designer durability—these are more 'emergency screen shield' than 'all-day armor.'