No; not a flashlight that you take on a race but a flashlight that keeps going and going and...
Would a 2 'D' cell single LED flashlight last approximately 20 days with good electronic regulation?
How long could you stretch a 2 D cell power supply with PWM and persistence of vision tricks? (also possible use of lower power LEDs like amber or RED for REALLY long runtimes.)
I don't have any particular use for this idea, it just seems neat.
Also where could I find some good meathods of calculating runtimes, my current system is botched together with guesswork. (I want accurate universal forumulas)
does such a flashlight exist already? (no I've seen the PAL/hummer light)
Would a 2 'D' cell single LED flashlight last approximately 20 days with good electronic regulation?
How long could you stretch a 2 D cell power supply with PWM and persistence of vision tricks? (also possible use of lower power LEDs like amber or RED for REALLY long runtimes.)
I don't have any particular use for this idea, it just seems neat.
Also where could I find some good meathods of calculating runtimes, my current system is botched together with guesswork. (I want accurate universal forumulas)
does such a flashlight exist already? (no I've seen the PAL/hummer light)