6mm 650 mini diodes for a pen host

[vortish]

guys I am trying to find a way to work my 20 mw 405 nm diode and drive from fasttech in to a host and what I really need is a pen style like from ebay this is a 12 mm diode and driver set up I am willing to trade three of my 6mm 650 diodes when they come in I hope this will work for some one

 

[adambowker]

Are you sure the diodes aren't 5.6mm, rather than 6mm?

 

[vortish]

5pcs 3V 650NM 5MW 6MM OD Copper Dot Semiconductor Laser Diode thats the add adam so that is what i am going off