Re: 1-1.2 watt 445nm Complete Laser Packages **LOW COST**
This build is not only a laser worth having but also a good bridge for future hobbyists from pre-constructed commercial units to true DIY builds. Here are my impressions that can be expanded into a formal review if there is interest (this will bump up the thread for now):
The kit sold from Survival Laser is complete with all the components for the working laser as well as rechargeable batteries, a charger, an allen wrench for fixing the module in the heat sink, and goggles that would be needed by those relatively new with lasers. (Kits are also available without the batteries, charger, and goggles for those who already have them.) The instructions are clear, and the unit assembles smoothly and quickly into the working model. My final unit metered as 1130 mW at room temperature and freshly charged batteries which places it well on par with 445 nm lasers available on the LPF.
Though many LPF members will eschew the semi-assembly build of this laser, it does give new hobbyists a look “under the hood” of a diode laser without having to risk disassembly of pre-constructed units. (Notably, Yorbresal has an understandingly large warning at the top of his sale thread warning those who purchase his lasers not to disassemble them due to the damage that usually results.) The Survival Laser design can demystify the key laser components for a curious pre-DIY hobbyist who can examine each piece first-hand and compare it to what is described in the many assembly tutorials on the LPF board.
The modular design of the Survival Laser could easily lend itself readily to other diode modules allowing offerings of 650 and 405 nm models as well as 445 nm. It would not be hard to imagine the company web site offers pill/driver/module units that could be reversibly swapped into the host. This simple business model has a lot of promise.
Survival Laser has proven to be pleasantly responsible and quick. After my payment through PayPal, the order was shipped by priority mail the same day and arrived in good shape. The kit itself was professionally and securely packed.
Overall, I recommend purchase of the Survival Laser and look forward to their future offerings.