hello ,

i searched the forum but couldnt find any relevant topics/posts/information

i am getting a specs with transition lens.

went to 5 shops in penang and found out different prices:

in shopping mall: 500, 480, 350 (promotion)
neighbourhood shops: 420, 400

the 350 seems to be promising but i wonder how can they go so cheap compared to other shops.

i am worried that they use some other cheaper photochromic lens and tell me its transition 1, as there are so many lower range lens that can change color now.

so, anyone know how do we identify the lens? will we be given any certs or similar?

please advise, thanks!