I've since bought and received the same laser but in blue from Gearbest. This unit IS a firestarter! But it's fairly scary as well, so use caution! Always wear glasses!
http://www.gearbest.com/led-flashlights/pp_105699.html
This model is slightly shorter than the green model I already have.
When I received this LASER, the beam woudn't focus into a tight spot, so I had to disassemble the head and adjust the lens focus. Now I'm able to get the light focused into a beam att longer distances, while still being able to focus to a closer point for the burning/fire starting. SO WEAR YOUR SAFETY GLASSES!
I was concerned because I couldn't see the dot at first. When I removed my safety glasses though, I could see the large purple blob of light on the wall. Apparently, this light is VERY close to the 400nm UV side of the blue spectrum. Outside, the light creates a deep purple hazy blur when shined against a remote wall. Very little light is visible when using with my UV/blue filtering glasses. The beam is only barely visible in the air, but is interesting when directed onto the trees, as many of the leaves fluoresce a bright red, making blue/red/orange flashes depending on what the beam hits.
This light will make wood smoke and blacken when focused to the smallest possible point. It will burn through paper, and immediately make any black plastic smoke, etching lines across the surface. I inadvertently allowed the beam to hit my hand, and immediately noticed the heat on my skin. After several tries, I was successfully able to get a match to ignite when held in the beam. I was also able to pop a balloon from across the room, while hand-holding the laser. So you had best be wearing your safety glasses!
The green laser is much more impressive due to it's brighter spot and more visible beam. This laser is more dangerous as it's in a more dangerous wavelength, that is also more difficult to judge due to your reduced ability to perceive that portion of the spectrum. So always wear your SAFETY GLASSES!
If you want a blue laser just for the fun-factor, I would recommend you avoid this high-power 301 and purchase this unit instead:
http://www.gearbest.com/led-flashlights/pp_107368.html
It has a much bluer color (True blue, less purple/UV) and a more visible and pronounced spot. For $3.79, it's a good option. Even though it has a much weaker emission, it looks more impressive due to the higher visibility.