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



Laser Pointer Store

dx 100mw labby question

Razako

New member
Joined
Mar 17, 2006
Messages
4,496
Likes
676
Points
0
Find an ordinary LED. The longer leg should be negative. Hook the adapter up to the LED with a resister. If the LED turns on you just found the polarity of the wires.
 

rog8811

New member
Joined
Jul 24, 2007
Messages
2,749
Likes
38
Points
0
If the output is 2 black wires bonded side by side they usually mark the positive side with a ridge along the side......

Regards rog8811
 

Attachments

Razako

New member
Joined
Mar 17, 2006
Messages
4,496
Likes
676
Points
0
If you post a picture of the adapter in question I can probably tell you which wire is which.
 




Top