Rkcstr drivers need only about 5v for a red laser, they need 7.2v for violet lasers.sk8er4514 said:I like what you did with the MXDL / laser modules are you using the 3V cr123's or 3.6V? I had thought that the rkcstr drivers needed at least 7.2V but maybe I'm wrong..
very nice looking laser. should be 220-250mW+, maybe 300 if you put a glass lens on it