50mW 445nm Blue Laser Pointer from dinodirect

The wavelength shorter than a red laser(445nm), the beam of blue laser is powerful enough to be seen even in the bright room. Blue Laser Pointeris ideal for highlighting overhead or LCD projections, videos, maps and charts, and it is a unique and unusual item .You can be one of the first in the world to possess this special gadget.

http://www.dinodirect.com/blue-laser-pointer-pen-50mw-445nm-handheld-open-back.html

Blue Laser 1 Watt 445nm Diode w/lens $70

there is a hot debate about the difference of a xj-a130 diode vs a xj-a140 diode.  The fact is they are the same diode but the a140 is a higher "bin". This means the a140  diodes, when tested,   performed more efficiently than the average a130 diode allowing them to run at higher outputs longer and cooler. The following  graph illustrates  the differences.


http://cgi.ebay.com/Benchmarked-Blue-Laser-1-Watt-445nm-Diode-w-lens-/280591734908#ht_3275wt_1135

445nm Blue Laser Pointers from BeamQ Lasers

Dimensions: Φ33*146mm
Wavelength: 440nm-450nm
Output Power: 450mW-550mW
Average Power: 500mW
Dot Size: <φ18MM,10M distance
Operation Temperature (℃)   -10℃～＋30℃
Storage Temperature (℃) -10℃～＋40℃
Operating Voltage    DC=3.7V (DC)
Starting Voltage DC=2.5V
Battery: 18650 x 1pcs


http://www.beamq.com/445nm-blue-laser-c-48.html