I hate to necro this thread, but seeing as how it isn't locked...
so, i have some more info for anyone who wants to buy from these guys.
my friend ordered 11 '250 mW' lasers from this company.
All of them were delivered within 3 weeks, but that's what you should expect from chinese products.
all of them worked upon arrival, and they seemed to work nicely (Not 250mW nice, though).
Some of them broke before the warranty period, and my friend (
aka: John) tries to file a warranty with them. They responded in engrish telling us to try new batteries. Luckily, John can talk chinese aswell as they speak english, and he got himself new products within 7 weeks.
i decided to order a laser for disection, so i decided to go with the high(er) quality one found here:
click
i was thinking that this actually may be a higher power laser, seeing as they knew the phrase 'seperate cryatal'. I goggle up, and disect. I hook my multimeter up directly, and only to the diode & cheap driver to find that the circuit draws no more than .110A! That's 300mW excluding circuit. The thing stopped working after about a constant hour of on/off beaming.
In short; is it worth the buy? Only if you can speak chinese.