How to reverse polarity?

[PJD]

The subject line says it all...I am a flashoholic, but I'm also VERY electronically challenged /ubbthreads/images/graemlins/icon23.gif. Can it be done by simply reversing the batteries, or is there more involved? I have a Docter Aspherilux 125 that I'm wanting to reverse the polarity on, but I really like this light, and I don't want to destroy it in the process. Thanx in advance!

PJD

 

[shankus]

I've never heard of the light. It may be possible to reverse the installation of the cell, maybe not. Have you tried?

Now, if the light has wires running to the bulb, you could reverse them as well.

Are you trying to make it "EverLED safe"?

 

[PJD]

shankus...EverLED safe is my ultimate goal. I don't have one yet, but I plan on getting one soon. However, I don't know if this would be a viable host for the EverLED, because the entire light is plastic, so heat buildup would probably be an issue. I tried to put the bulb from my Dorcy Cool Blue in it, but couldn't get it to work. After reading the threads on polarity issues for the EverLED and realizing that LEDs are polarity specific, I thought that was the problem. I just didn't want to mess with the light until I consulted with "the experts". Craig has a review of the Docter Aspherilux 125 on his site...take a look; it's really a unique light that has just about the smoothest, cleanest beam of any incandescent I have. Similar to the beam of a Brinkmann Rebel, but it's 6V halogen bright, and has a wider beam spread. I'd really like to convert it to LED, but I paid $35.00 for it (used), and I don't wanna screw it up! Thanx for the reply...

PJD

 

[shankus]

Well, the only EverLED heat problem would be reduced brilliance, as the EverLED has thermal protection circuitry in it. If the heat becomes a problem, the current is reduced.

I read a thread this morning that says polarity protected EverLEDs are on the way:
new everled's in 30 days


As for the light, can the cells be reversed easily? If so, that would be the easiest fix. Although, I myself would prefer to reverse the leads going to the bulb socket. At the worst, it would require soldering to make the lead reversal, and would fail-safe the cell installation.
Imagine a friend changing the cells in the light, and putting them in "correctly", destroying your EverLED. D'OH!


Do you have a multimeter? Did you read the voltage polarity at the socket?

 

[PJD]

On this particular light, switching the batteries would definitely be the easiest option, so I'm gonna give it a try. As far as a friend borrowing my DA125...that'll NEVER happen! I don't have a problem loaning out some of my lights, but this one was WAY too hard to come by! My SF's don't leave my sight as well /ubbthreads/images/graemlins/grinser2.gif...

PJD

 

[Empath]

Switching the batteries will switch the polarity. What you have to watch for, is whether or not the light uses an electronic switch, or some other circuitry for controlling modes, brightness, or whatever. You want to make sure the polarity is reversed if necessary. You DON'T want the polarity to any electronic circuitry reversed.

I don't know if the Docter Aspherilux 125 direct battery to bulb, or if there is other circuitry involved. If so, you'll have to make the switch on the lamp side of the circuitry.