L1c looks nice.
Dont know what they are using for lubricate but on my light the grease was completely dry, almost baked.
Had hard time to even unscrew the head for the first time and i spent good half hour and lots of q-tips and alcohol to clean that mess.
I emailed them asking what kind of lubricate they are using but got no answer from them (like form the olight service center)
these guys dont read e-mails or they just dont bother with it.
But Fenix service is top class, they replied me in no time.
So big minus for lumintop and olight service centers.
Now when clean it works fantastic.no mode skipping, tint is pure white, finish is fine and led is centered decent, not perfect...