Here's a quick overview of my new "Spartan" Yellow laser from DragonLasers! This is my first 589nm yellow laser, and I'm really happy with it. Yellow lasers are pricy, but have a unique beam that all laser hobbyists seem to love.

In this video, the laser runs in the 40mW-50mW range, but can run as high as 85mW when a little bit cooler. The driver has linear regulation, and sucks down 2.25A at 3.7V, so this definitely is not an efficient laser! Beam divergence is about 1.05mRad. 

All in all I am happy with my purchase. DragonLasers does NOT guarantee any sort of minimum power output rating with this laser, so it is a risk to buy. It seems most people are happy with their purchases on the forums though!

EDIT: By popular demand, I give you a video on my moths!! https://www.youtube.com/watch?v=64XJ3mnI2kw&lc=z12gyzzhlui3jd41b22vgfqakpylwjvnv

Check out http://laserpointerforums.com to learn more about laser pointers, lasers, and laser pointer companies! I have been a member there for 8 years, and have received a bunch of help from the knowledgeable members there!