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        Discussion Help with led set up.

#1 rkenosha Jan 02, 2013 06:55 AM

Help with led set up.
Hi everyone. I building a new quad. I have two 1 meter strips, each minus 3 leds that I cut off. I always use 4s batteries. Would like to know what type of resistor I need to wire in to drop the 4s to acceptable voltage for leds? Also, important part, how do I wire them in? Thanks rkenosha

#2 kad Jan 07, 2013 09:05 PM

Hmmm A cheap LM7812 (<$1.00US) Voltage Regulator might work better. Drop the voltage down to the 12v the strips are already expecting. Slap a small heat sink on it and make sure it's near the prop wash.


#3 electrotor Jan 08, 2013 03:38 AM

Each 1 metre strip will draw less than 400mA so I suggest the easiest thing to do is buy a small 3 cell LiPo (500-1000mAH) and wire the LED strips directly to it. It's a ready made solution.
Wire both strips in parallel.

#4 Julez Jan 10, 2013 06:03 AM

Or buy a small switching buck regulator on ebay. These are adjustable in voltage and very cheap as well.
Connect this to the outer contacts of the balance plug for simplicity.

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