Sinoteck is a Chinese company that can be found on sites like Alibaba/DHGate. They sell 532nm laser pointers rated at 500mW and while companies found on sites like these generally have a bad reputation, I have found the Sinoteck product I purchased to at least be 300mW+
I don't have any of the equipment to definitively verify it but I can assure you this product is very impressive for its price. It has no problems burning dark plastics and such (wear safety glasses!) I picked it up for $48 shipped; included a holster, batteries, and a charger.
I wouldn't recommend purchasing anything from Alibaba/DHGate as 99% of the "high powered" lasers sold on there are no where near the output they claim but if you insist, definitely purchase the one being sold by Sinoteck.
Here is a picture of this particular product. You can see the design is very unlike what many of the other products being sold from the other companies with outrageous output power claims.
Just my 2 cents
I don't have any of the equipment to definitively verify it but I can assure you this product is very impressive for its price. It has no problems burning dark plastics and such (wear safety glasses!) I picked it up for $48 shipped; included a holster, batteries, and a charger.
I wouldn't recommend purchasing anything from Alibaba/DHGate as 99% of the "high powered" lasers sold on there are no where near the output they claim but if you insist, definitely purchase the one being sold by Sinoteck.
Here is a picture of this particular product. You can see the design is very unlike what many of the other products being sold from the other companies with outrageous output power claims.
Just my 2 cents