how to connect laser pointer to wall outlet?

On Tue, 10 Aug 2004 20:29:48 GMT, James put forth the notion that...

4.5 VDC.

I've read that wiring into these laser pointers is near impossible without damaging the laser diode.

how do i get that voltage to all of them?

On Wed, 11 Aug 2004 00:56:56 GMT, James put forth the notion that...

Go to Radio Shack and get a plug-in power supply that will give you a

4.5 volt DC output. You'll need to rig up a way to connect the output to the lasers, and you'll have to make sure you get the polarity right or they won't work. The little tit on the top of the battery is the positive, and the flat end is the negative. Run the same two wires from the power supply to each laser. This is known as wiring them in parallel. You may have to make a dummy plug out of a piece of wooden dowel that's the same diameter and length as the batteries would be, make a groove in it for the wires, and run insulated wire in the grooves. At the end of the dowel, you can strip the end of the wire and bend it over the dowel so it makes contact the same way the batteries would have. If your lasers use those little button batteries, you'll have to rig up something similar, or possibly you can just solder the wires on.