Please note that violet lasers is more dim when seen by naked eyes than green and red laser.Actually it's powerful.Kindly please know it before ordering.Thanks! 

Specification: 
Output Power 50mw 
Wavelength 405nm 
Working Voltage 5V (red wire for postive +, black wire for negative -) 
Working Temperature -15 degree~35 degree 
Laser Shape Dot/Line/Cross 
Focusable Yes 
Material and Color Metal 
Lens:Plastics 
Dimensions 12x45mm (or sometimes 12x35mm according to factory batch) 

Details: 
1.It is a 405nm 50mw focusable laser module with three caps:Dot line and cross.You can change the caps to get different effects: dot line and cross,which is shown in the main photo. 
2.If you want to prolong the working time of this module, please add heatsink to this module. 
3.Please keep the lens clean. 

Package: 
1 x Adjusted Violet Blue Diode Lasers 405nm 50mw Dot/Line/Cross Module 
1 x Heatsink 
1 x Dot/Line/Cross caps