21 LEDs powerd by 3 AAA
- Thread starter UVLaser
- Start date
WildRice
Flashlight Enthusiast
it all has to do with battery life and circuitry. 3v or 2 batteries will need boosting circuitry. 4.5v will not neet extra boosting circuitry. but the 3xAAA will not last as long. hope this helps.
Jeff
Jeff
UVLaser
Enlightened
I have herd of this boosting circuitry many times but is a boosting circut cheap to buy? Ok that me get this correct sines its 21 leds it will be brighter then the dorcy 8 led flashlight but with a shorter run time.
Instead of 3 AAA why not one D or three AA that should boost up the run time don't ya think?
Instead of 3 AAA why not one D or three AA that should boost up the run time don't ya think?
TORCH_BOY
Flashlight Enthusiast
I had recently purchased one of the 21 LED Flashlights
through ebay, this light is directly driven from the
batteries, the emitted light was white with a blueish
tint, overall not a bad light considering the price $12
through ebay, this light is directly driven from the
batteries, the emitted light was white with a blueish
tint, overall not a bad light considering the price $12
One D-cell would be a lower voltage. 3AA would give a longer run time than 3AAA, and 3C or 3D would give even more. To go down to a 1D would probably require boosting the voltage with a regulator. a 3AA > 1D adapter would work fine though.
Remember, one AAA, AA, C, or D, all have the same voltage, just different capacities. Changing the voltage can mean that you'll need to change the circuitry around as well, though this isn't always the case. If this is an unregulated light then most likely 1D would run it very very dull. You'd be better off with a 3AA to 1D adapter in that case...or just a 3AA light.
Seeing as it's 3AAA if you want more capacity you could try going with lithiums or rechargables.
Remember, one AAA, AA, C, or D, all have the same voltage, just different capacities. Changing the voltage can mean that you'll need to change the circuitry around as well, though this isn't always the case. If this is an unregulated light then most likely 1D would run it very very dull. You'd be better off with a 3AA to 1D adapter in that case...or just a 3AA light.
Seeing as it's 3AAA if you want more capacity you could try going with lithiums or rechargables.
WildRice
Flashlight Enthusiast
unless you want to build a booster yourself, and how you want to run it. A dorcy 'AAA' has a nice little booster circuit, it can push enough to light a few whites from a 1.5v source.
Jeff
Jeff
