Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

How to Register on LPF | LPF Donations

Probleme olike 50 mw






Nope. These modules are made for a case-positive host.
Negative-to-spring. (opposite of what is in your video) :cool:
Also, I'm not sure that your small watch battery (power source) has enough juice (mA) to power the laser. If I recall correctly, the diode requires >400mA to work, and that battery doesn't put out more than 220mAh.
 
Last edited:
No :( Its not working either I changed the battery and I put two 1.5 VDC battery (pro) and no matches, the power comes back on the stack ... when I switch
 
No :( Its not working either I changed the battery and I put two 1.5 VDC battery (pro) and no matches, the power comes back on the stack ... when I switch
And you are hooking up the negative (-) to the module spring and the positive (+) to the module body (brass part)? :confused:
 
Okay. Then it's dead. Perhaps you killed it with the reverse-polarity. :(
 
I do not think that at the beginning because I had put it - on the spring and most of the brass
 


Back
Top