I have a couple around that will get dissected this evening and I'l report back if no-one else beats me to it
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Is it bad luck to quote yourself?

Ok, since I didn't see anyone say they did it yet, I pulled one of these apart. It wasn't easy considering all the protesting that was going on. I didn't pay alot of attention to it, so I only managed to pick out a few words....emergency, power outage, etc....too many "what ifs" for my tastes.
So, the first thing I did was test out the action. Seemed pretty good. Easy to turn on and off. Pretty reliable actuation (which actually didn't bode well for an easy mod.) Time to go inside for a look....
I pulled the four tiny philips screws and the thing falls apart in my hands. Ok, I pick up the pieces and try to forget about the need to put the light shaped puzzle back together at the end of this.

Now I look for the switch. Nuts! Its a real switch. No simple springy pieces of copper or ingenious, easily defeated, molded latching mechanisms. Just a nice little quality push-on/push-off switch.
But wait! I can see a seam! So I wrecklessly jam my thumbnail into the seam on both sides of the switch and like any mechanism under spring pressure, it too transforms itself into a nearly impossible looking puzzle. Only this time, it's about 1000 times smaller

After staring at the parts for about 10 minutes through the illuminated magnifier lamp I use for my electronics work, I start to see how the switch worked. There was something that looked like a piece of bent wire that moved on a pivot. Surely this random looking part was responsible for the toggling action of the switch, so out it went.
Now all I had to do was to get that pencil-lead sized contact back into its holder and aligned with the contacts it slid on previously, while at the same time positioning the spring in it's proper place and snapping the upper body of the switch back in place.
Anyone who has tried this type of stuff probably already knows that you get about 3 chances to put it together. The first one usually fails miserably and the second one usually involves looking for the parts for about 10-minutes. By time the third and last attempt is upon you, you have enough experience with the mechanism to get it far enough to get some really good tension on that spring....
Long story longer, I think the spring went in my coffee and the little metal contact went into the cat box..and I'm not going in there looking for it.
So after all the "I told you so's" and promises to replace things fallen victim to my folly, I came to the conclusion that cobbing a real microswitch in there might not be a bad idea. But seeing that I need to get a replacement light for the wife, I might as well pick up a couple extra and give it another shot.
I'll report back when I find out more......
RandyT