LED Lamp Parallel Circuit
Hello everyone, My first question in this forum to build a LED panel with parallel LED connections. Input:  220V AC Bright White LED 5mm I want …
posted by marlopax on Jun 26, 2010
views: 1,458
does anyone know which brands of laptops used LED backlighting?
by the way, LED backlighting, Is NOT LCD backlighting.
posted by Guest on Mar 9, 2009
views: 85answers: 3
LED problem on distortion pedal?
Recently I have bought a DOD supra distortion pedal, it works fine exept LED, when I open it LED wasn't attached anywhere so I attach it where it s…
posted by vellimirr on Jun 23, 2011
views: 28answers: 2
LED driver.
i want to make a LED light source, I have found a few on other places, but not sure of those. I have a 9v battery, 4LEDS.  If anyone would be so …
posted by mossDboss on Aug 16, 2010
views: 94
Resistors and LED question
Hello, I have a quick question about resistors and LEDs. If I am making an LED flashlight, do I attach the resistor to the (-) side or the (+) si…
posted by jknight on Dec 6, 2008
views: 50
Remove a LED from... anything
I have a DVD player in my bedroom with a LED on the front that is really annyoing. Is there any reason that I couldn't open it up and cut/tape off …
posted by steimel386 on Jan 8, 2009
4.09 ( ratings) views: 46
where can i buy LEDs in dubai (not online)?
there are alote of cool instructables about LEDs but i cant go internet shopping. and i cant find any shop that sells LEDs in dubai
posted by ahmad2117 on Dec 31, 2009
views: 436answers: 15
LED bulb with AC 220v.
can any body help me???? I want to build a LED bulb with 220v AC. But the circuit should be very simple and short. I want to fix it in a dead Energ…
posted by raza896 on Dec 8, 2009
views: 3,388answers: 5
Is it possible to power a led with passive earphones?
Hi, Is it possible to power a led with passive earphones? I took apart some earphones and connected the 2 wires in the right earphones and it didn…
posted by rayjai on Nov 17, 2010
views: 29answers: 3
Need help building an rgb led music sync.?
I would like to start a project building an LED wall.  I would like the LEDs to change color to the frequency.  I was wondering if this was possibl…
posted by stefanu on Dec 4, 2011
views: 40answers: 3
led's and 3 aaa batteries ?
I put 3 led's on a tin can with three aaa batteries and a switch,but no resistors on the led's.i also wired the led's parallel.My question is why d…
posted by ERIK G on Dec 10, 2011
views: 33answers: 4
Car speaker LED question
hi guys, i have a 500w car speaker, and i want to attach an LED to it so it syncs with the treble and bass, and when i tried it blew out the led b…
posted by zfors88 on May 11, 2009
views: 71
What Happens to an LED when it is overvolted?
I would just like to know what happens when an LED is overvolted, and whether flickering is a a sign of overvolting. The LED used was a Super Brigh…
posted by CheeLee on Nov 22, 2009
views: 214answers: 7
What is the "closed" circuit for red then green led, on/off?
hi for a project i am doing, i wanted to make a 3d led cube but it was to simple. BUT i can do it if i can make it with different led turning on an…
posted by asdasd699 on May 26, 2009
views: 99answers: 2
how to prepare a serial led's display??
circuit diagrams and pdf files
posted by pravee123 on Nov 2, 2011
Connect multiple LED with different colour?
posted by shiva19192 on Nov 14, 2011
views: 16answers: 2
hey how do i work out how many led's i can hook up to a 9v battery that will last at least a day?
i want to link together as many blue led's on one circuit as i can i was thinking a couple of 9v batteries and a bunch of led's together, but i do…
posted by ANGRY_CLOUD on Sep 6, 2009
views: 73answers: 4
how do i wire up 6 piranha leds?
posted by dvdpr on Apr 25, 2011
views: 155answers: 5


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