Thank you guys, appreciate your concern, but I am using IR 100 mW
pulsed device manufactured for a friend of mine for biostimultion (905nm) of course with eye protection for the patient and for me, but my lasers are old (15 years), now I want experience with continuous regimen, I have doubts about the size of the point in this laser module from lzarer.com, because is invisible and the web site don't put specifications, the 905 nm I am using actually has divergence lense in the diode, if some one can sugest me a good web site for buy 50 -100 mW IR 808, 830, 850 nm in pen shape with good price/quality or some one can manufacture one for me we with nothing sofisticated specifications like adaptation to home elctricity instead bateries or adaptation to decrease or increase the mW from 50 to 200 mW may be we can deal something, for now I want test the continuos regimen like "MOXIBUSTION" with laser (search the word in wikipedia), thanks for your soon replay
PD My friend is very bussy this times