for regular blue light lens it works perfectly fine, and fits well. i have no complaints for the material due to the price being cheap. the only problem is the lens are not replaceable like shown in the video. i’ve tried everything to get these screws out and nothing has worked. other than that i have no complaints.
i can't tell if they work or not; i still get headaches/eye strain while wearing them for work. it comes with a little mini screwdriver (?) to tighten the screws, but it barely fits in the screws to tighten them, so not sure if that solves the problem. the screws come loose really easily so the glasses feel flimsy. i want to think they do help at least some, but i don't know if there's a definite way to tell.
螺丝难拆
螺丝问题
螺丝松动
螺丝问题