notrefined
Enlightened
Re: 500 Lumen - AAA Flashlight (photos)
I suspect a free-machining copper (or better grade) version would be popular
I suspect a free-machining copper (or better grade) version would be popular
You need much more than 1.5 A from an AAA to get 500 lumens OTF, much more than double that in fact, the vf of the led being at least twice the 1.5V of the alcaline, and said alcaline sagging like crazy therefore far from 1.5V output.
I suspect a free-machining copper (or better grade) version would be popular
Looks good, it's very different to my design. Must be fiddly and time consuming to make the drivers for it, I wish I was skillfull enough to make my own. I look forward to seeing the finished product
Yes, I agree, but in order to output 500 lumens for a current draw of 1.5A, I meant the use of li-ions in AAA size, which even then would be very difficult.
It would certainly be impossible with alkaline AAAs.
wow 500 lumen aaa light, whats the runtime 5 minutes? lol
Maybe you could put some kind of capacitor in there that charges off a 1.5v alkaline and then delivers a boost of current when needed. :shrug:
Well you've got cajones and I can't wait to see what you come up with Good luck!
I would definitely be interested in one depending on the price point. Even if it was only for a few seconds, if you could achieve this kind of output from a single 1.5V AAA alkaline cell without damage to the cell itself, it would truly be an epoch-making light. I won't say it can't be done, simply because it hasn't been done (to my knowledge).
Best of luck in the final design tweaks!
wow 500 lumen aaa light, whats the runtime 5 minutes? lol
may be just 15-30 seconds