Forget all those Chinese lasers. Go to Youtube and check out PhotonicInduction's video regarding a substandard USB repeater. His description of Chinese products applies to Chinese lasers just as well.
I would look into having a reputable member build you a 532nm. They will know where to get the right parts, and the build will be superior in general. Western builds (at least the C6 types) can be worked on without too much trouble, parts are available, etc. The same can NOT be said of Chinese lasers, if they break then in most cases you are dicked. Avoid them, I say.
It might well cost you more to have a member build a laser but you get what you pay for. Due to their simplicity and generally modular design, Western laser builds will be superior to Chinese products in nearly every case. Good builders will also honor their warranties and whatnot, unlike Chinese sellers.
Yes, there are "good" Chinese sellers but Western builds trump their products every single time.
ETA: Even Skylasers, I'm sorry, they are one of the better Chinese sellers but they are a Chinese company all the same and it absolutely does show in the build quality. I managed to get my LED'd 405nm apart and IMHO the host design is typical Chinese retardation, nearly as bad as the Laser 301:
1) Poorly designed focusing mechanism, it is multiple items screwed together and unscrewing one almost necessarily means jamming the other impossibly tight. Focusing mechanism makes it impossible to adjust the lens focus if it is off. (Lens is GLUED into place regardless, see below.) Difficult to clean the lens since one cannot simply remove the lens a la AixiZ modules. It's every bit as bad as the Laser 301. The lens IS glass and looks like it's AR coated too, but that's the only positive.
2) Host uses a shit ton boatload of glue. Glue to hold threads together, glue to hold switches in, glue to lock the lens threads. Glue for glue's sake. I hate glue. Glue is the imbecile builder's way of doing things, and anyone who designs a host to require glue is likewise an imbecile. Glue will hold your crapola build together but god help your customer's soul if something breaks and they want to fix it. Surprise, surprise then, that most Chinese lasers use glue. The inside of the 405nm was slathered with it, a total mess. Impossible to work on the host or get the module or anything else out. You would have to soak it in methylene chloride to dissolve all the damn glue. AVOID lasers that use any glue at all, IMHO.
3) Tiny fragile wires. I would guess 20 gauge or smaller. Poor quality insulation that is not very flexible. This is just flat out Chinese penny pinching, no excuse for it.
4) Skylasers HL hosts don't fit 18650's. Design flaw.
5) Heatsinking is substandard. Tiny little aluminum and brass thing. Not a big issue on the lower power single mode lasers, but it's no wonder my 405nm died. If the heatsink had been equal to the Survival Lasers copper C6 heatsink, I have no doubt the laser would still be working just fine.
I'm sorry to have to say all that; the Skylasers hosts LOOK great. A very clean, no-nonsense layout. The lasers, by and large, do work just fine. It's just that there is no recourse if something breaks, fixing it is way harder than it needs to be because of all the glue and general corner cutting in terms of putting it all together. To me, that's an unforgivable flaw, basically defective by design. I would never build anything in such a manner, and from what I can tell, neither would any self-respecting forum member.
I only found that stuff out when my 405nm LED'd and I tried to take the host apart to see what was what. Needless to say, I was appalled.
No, I wasn't exaggerating.
Conclusion: Have a forum member build you a laser, their build will be superior because it will be sensible and engineered for reliability. Such builds are more expensive up-front but it balances out by way of not having to replace Chinese lasers when they die.
