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LED help? Answered


i would really like some help with a project that i am working on. i am trying to make a ring of leds and am curious as to the soldering aspect. i have heard multiple responses ( never solder leds in succession, you don't need a resistor etc. ) and hope to get a straight answer with this. if someone can draw up a schematic for this i am more of a visual learner. i'll be using 8 leds in a ring form and will have them posted in a piece of plexi-glass all the same distance from each other... any answers that get me closer to my goal would be very much appreciated.

P.S. i don't have a lot of space for this project it is going to be installed into a thin area ( front - back )

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Z0n3d0ut
Z0n3d0ut

10 years ago

they are the standard 1/4 gumdrop LEDs. and if i understand correctly i can solder each LED to the next and just solder a resistor to the first LED that would connect directly to the power source?

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seandogue
seandogue

10 years ago

You failed to specify the power rating of said LEDs, so I'm going to go on the premise that these are simple 1/4 or 1/8 style gumdrops, either for "pretty" display value or as an annular light source for a camera (like the ir source used for many cheap "night vision" security cameras...(hint for diyers)

Chain them to save space and apply an appropriate current limiting resistor on the end. I've done it hundreds of times with no issues in my professional life. In several instances, the assemblies held up to 100-150g impacts repeatedly over the course of a year or two. It's all in the quality of the build.

Whether or not you chain them, purchase more than you need and power them up individually before your build, to optimize the slight variations in intensity at a given current.

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Z0n3d0ut
Z0n3d0ut

10 years ago

don't know about the leds yet. however i plan on using a AAA battery pack for the power source

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LiquidLightning
LiquidLightning

10 years ago

What voltage and current is your power source, what voltage are your LEDs, and what current do your LEDs need?