Need to fix tailcap

I've bought Lazerer product cyber445 1W waterproof
I have for a few months now , but the laser stopped working.
I've checked and the problem is the tailcap.

I've tryed to contact them in the last 3 days and they failed to respond.

Can I fix the tailcap myself or replace it ?

Buy a replacement also keep a couple of them extra, you're gonna need em, its not that hard to find.. can you post a picture!
A better solution is to mod the tailcap with a higher quality switch designed for higher DC currents such as a McClicky switch or a Judco 10A switch.

Cyber 445nm - 1W Focusable Blue Laser Water Proof

I don't know where to look for tailcap other than this place

Accepting offers

You can try contacting O-like
I believe they used to sell these hosts aswell. (not sure)
Maybe they have a spare one lying around.

Or if you google ''200mw waterproof red laser pointer'' you will see the same host, but with a red laser diode in it.
You can get these pritty cheap.

Also check out this topic...
http://laserpointerforums.com/f46/waterproof-chinese-diy-host-18-a-76808.html

sm.