I have a couple of laser units which are about 1.5 watts each. They used to burn wood and stuff pretty good and now after about several months of use, they don't seem to pack the same punch any more. It's not a battery issue as I have tried using them with fresh batteries installed and they...
I would be very wary of lasers being sold at sites like DHGate, Trade-Tang and the like. They boast lasers with outputs up to 5000 mw (5 Watts) and there's no way these can be the real deal. I was suckered into a 4000 mw unit and the output power was probably more in the neighborhood of 40 mw...
All legal matters aside, I finally got one of Wicked's Arctic G2 units earlier this month (after having placed my order with them last July). I have to say so far I've been quite underwhelmed by its performance. I have watched YouTube videos of these things burning through black plastic CD...
I had bought one of their 1000 mw blue lasers and it showed up in a reasonably short space of time with tracking info. The unit has proven to be an adequate burning laser but I'd need a power meter to know the precise milliwattage.