I bought this laser or very similar model more than a year ago. I didn't measure the actual output power, but I have no doubt it is as advertise. I actually had to be careful pointing it on the deck or leaves (could start a fire). The case is actually heavy and feels very solid and it does seem to keep the laser cool. I actually was surprised that it was better than I thought it would be. It has normally rectangular beam shape with standard divergences for this class of diode (nothing great but better than expected for the price, easily could be seen on an object 2 miles away at night).It came with cheap pattern making attachments (fun but can break easy). It is easy to focus for burning and it will accept attachments I use for my other lasers. Shipping batteries can cause problems in Canadian customs, so I purchased high quality batteries separately. I paid for the very cheap ePack shipping, so it took a while to get to me in Ottawa. The problem wasn't on the Chinese side either, they shipped the laser promptly. Packet got stuck in Canadian customs in Vancouver for weeks (not abnormal for ePackets in Canada, because post loses money on these). This is a legit laser and it is good value for the price.