Phaserburn
Flashlight Enthusiast
This light:
http://store.advancedmart.com/nu5waposiled2.html
has been out for quite awhile now. It's a nice, solid light in a single AA form factor, and I like the hi/low function.
The reason for the post is this: After trying different battery chemistries, I figured lithiums would supply the highest constant current and therefore make the light brightest and with the flatest/longest discharge curve. And so it does. BUT, trying this light on a Nimh cell showed me something. You really don't see an enormous brightness difference between batteries, as it's only one cell and the difference is a small fraction of one volt. But the nimh draws only 110ma on high, and 50ma on low. That, to me, is astounding. At 50ma, this light is not only supplying current to the boost circuit, but it's also getting enough to the led to create a pretty respectable amount of light; more than any other single 5mm led I've seen, for sure! Single led/single cell lights (ala Arc AAA) draw far, far more current than that to boost up to where the led can be driven.
So, on low using an Energizer 2500, you can expect around...45+ hours of constant output runtime!! Is there anything else like this? Even on high, a solid 20+ hours can be had PER CHARGE. Am I nuts, or is this unusual? I've been using mine as a nightstand light standing on end in candlemode, leaving it on till around 2AM or so (to facilitate getting to the bathroom and not killing myself on my baby daughter's toy minefield). Well, it just keeps on going for days and days this way. Has anyone else noticed this light's properties? Do the other .5W Nuwais have similar current draws using a nimh?
http://store.advancedmart.com/nu5waposiled2.html
has been out for quite awhile now. It's a nice, solid light in a single AA form factor, and I like the hi/low function.
The reason for the post is this: After trying different battery chemistries, I figured lithiums would supply the highest constant current and therefore make the light brightest and with the flatest/longest discharge curve. And so it does. BUT, trying this light on a Nimh cell showed me something. You really don't see an enormous brightness difference between batteries, as it's only one cell and the difference is a small fraction of one volt. But the nimh draws only 110ma on high, and 50ma on low. That, to me, is astounding. At 50ma, this light is not only supplying current to the boost circuit, but it's also getting enough to the led to create a pretty respectable amount of light; more than any other single 5mm led I've seen, for sure! Single led/single cell lights (ala Arc AAA) draw far, far more current than that to boost up to where the led can be driven.
So, on low using an Energizer 2500, you can expect around...45+ hours of constant output runtime!! Is there anything else like this? Even on high, a solid 20+ hours can be had PER CHARGE. Am I nuts, or is this unusual? I've been using mine as a nightstand light standing on end in candlemode, leaving it on till around 2AM or so (to facilitate getting to the bathroom and not killing myself on my baby daughter's toy minefield). Well, it just keeps on going for days and days this way. Has anyone else noticed this light's properties? Do the other .5W Nuwais have similar current draws using a nimh?
