Full disclosure -- I bought a no-diode kit from Survival Laser and a DTR diode and ended up cutting the wires on the driver / diode too short to fit into my host. I'm a bit in over my head so I'm just going to sell off the parts and maybe by a pre-build laser somewhere.
• DTR 445nm M140 Diode
•...
I'm still new to lasers but I've been doing a lot of research the last couple weeks. I first thought that I wanted to buy a big bad high power laser that I could play with but then I realized that something like that requires safety precautions and equipment -- not something I can just carry...
I'm pretty new too and I've been looking at some of the kits that they have at Survival Laser. From what I've put together they seem to be well regarded here on the forums.