D
**DONOTDELETE**
Guest
I have a few questions that somone here may have already learnt.
how many LEDs (assume white nitchitas) can be placed on 3 alkiline AA batteries w/o any resisters by using the internal resistance of the battery. In other words, how many does it take so the batteries cannot put out enought current to blow the array from overcurrent?
then the same thing for 4 AAs is it possible to have say 40 white leds on 4 AAs and not need current limiting?
Along those same lines, if the battery is being torqued to 3.8v say from its original of 4.5, it probably isnt going to last long eh?
the reason i ask is because the photon works great at its 6v little batteries for a usefull lenght of time, and a lexeon star can run off of 3AAs without toasting.
so if we had volume formulas for internal battery resistance, instead of formulas for loosing power out a resister that isnt outputting light, then we "dont need no stinking resisters"
is there any such substance that is completly reflective (mirror/foil) without being conductive? the purpose being to use it on the back of a array pcb , without fighting it to keep from shorting stuff.
Mylar is conductive unfortunatly, and most of the metal paints are also.
I performed a TOUCH light conversion this week, i had a touch light make me angry so i tore it open and tossed in a bunch of old hacked up leds that should have been in the trash. the touch lite uses 6v 4AAs.
in this case i combined 2.4v leds (red redorange yellow) with 3.6v leds (white turquoise) 2.4+3.6=6
the array has about 26 leds in it and puts out the same volume of light through the heavy difusion for 1/2 the power of the incadescent.
so using this same idea take like a amber or redorange and tie a cyan to it, and you get a spectum that will show most colors and instantally work with 6v, use 2 banks and you get 12v , simplicity & reduced componentry is like building a pyramid instead of a skyscraper
how many LEDs (assume white nitchitas) can be placed on 3 alkiline AA batteries w/o any resisters by using the internal resistance of the battery. In other words, how many does it take so the batteries cannot put out enought current to blow the array from overcurrent?
then the same thing for 4 AAs is it possible to have say 40 white leds on 4 AAs and not need current limiting?
Along those same lines, if the battery is being torqued to 3.8v say from its original of 4.5, it probably isnt going to last long eh?
the reason i ask is because the photon works great at its 6v little batteries for a usefull lenght of time, and a lexeon star can run off of 3AAs without toasting.
so if we had volume formulas for internal battery resistance, instead of formulas for loosing power out a resister that isnt outputting light, then we "dont need no stinking resisters"
is there any such substance that is completly reflective (mirror/foil) without being conductive? the purpose being to use it on the back of a array pcb , without fighting it to keep from shorting stuff.
Mylar is conductive unfortunatly, and most of the metal paints are also.
I performed a TOUCH light conversion this week, i had a touch light make me angry so i tore it open and tossed in a bunch of old hacked up leds that should have been in the trash. the touch lite uses 6v 4AAs.
in this case i combined 2.4v leds (red redorange yellow) with 3.6v leds (white turquoise) 2.4+3.6=6
the array has about 26 leds in it and puts out the same volume of light through the heavy difusion for 1/2 the power of the incadescent.
so using this same idea take like a amber or redorange and tie a cyan to it, and you get a spectum that will show most colors and instantally work with 6v, use 2 banks and you get 12v , simplicity & reduced componentry is like building a pyramid instead of a skyscraper