I have bought a 250mw blue 457nm and Mccarrot did Powertest with his Coherent meter
After half an hour it didn,t do more then 120mw I also bought a green 500mw and that was doing 567mw.
I contacted frank from viasho twice last week but no response Does anyone know if he,s on vacation ?
I,m really concerned because i spend alot of money on this unit