Hi everyone, I'm new to flashlight here, used to own those big Eveready torchlight, until I bought myself a Fenix flashlight, fell in love to it instantly, small and bright!

Can anyone tell me where to buy the lubricant for the o-rings?

Thank you, will go search for it at hardware and plumbing shops.

Inside the tailcap, next to the spring, there's two small holes, using some needle nose pliers or forceps, stick into those holes and unscrew the retaining ring. Remove all of the insides carefully and eventually, the rubber boot comes out. Change it and put everything back the same exact way it came out, screw the retaining ring back in and you're done!

Wow, bro, I think 3 to 4 hundred is no more budget flashlight anymore, at least to me.
I own a L1D Q5 and it serves me very well, pocketable and bright enough for me, though only 120 lumens. What's the best of it that I like is that it only uses 1 AA battery. Or you can opt for L2D Q5 which takes 2 AA batteries, higher lumens, longer run time and longer in dimension also!

I'm not sure if its normal or not, but my L2D got sound also in turbo mode!