06-27-2012, 04:10 PM | #1 |
Quarry Creeper Join Date: Jul 2008 Location: Stuck in Missouri for now.
Posts: 284
| 12V LED Question
So I found these Tiny Prewired Super Bright Surface Mount LEDs - 12V DIY Plug and Play SMT LED but the issue is they are 12V and I planned on powering them off the RX. The idea is to run them flush mounted on the inside of the body so that I don't have to cut out the headlights and tail lights. Since the Rx only puts out about 5-6v, can I use a 6v cap to get the extra voltage needed to the lights? (I don't know if the RX is AC or DC. I assume AC since there must be some sort of modulation being carried on the signals.) And if not, are there any negative effects to running the LEDs undervoltage? (I don't think there are, but it never hurts to check.) |
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06-27-2012, 07:27 PM | #2 |
I wanna be Dave Join Date: May 2008 Location: Baltimore
Posts: 4,442
| Re: 12V LED Question
All LEDs have a minimum voltage that they need to light up, you would need to know what that voltage is in order to know if they would run off of 6V.
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06-27-2012, 07:39 PM | #3 | |
I wanna be Dave Join Date: Jan 2006 Location: ...the burning end of the rope.
Posts: 5,013
| Re: 12V LED Question Quote:
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06-27-2012, 08:27 PM | #4 |
Quarry Creeper Join Date: Jul 2008 Location: Stuck in Missouri for now.
Posts: 284
| Re: 12V LED Question
The BEC is already in use for the hi torque servo. Plus, capacitors block DC current, so even if I did do the math to calc what value cap I'd need, it wouldn't work anyways. Blast! Looks like it will be back to light buckets.
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06-27-2012, 10:39 PM | #5 |
Quarry Creeper Join Date: Oct 2011 Location: Reno
Posts: 204
| Re: 12V LED Question
why can't you just wire them straight to your battery and throw a switch in? i have LEDs all over my SCX10 and i have them wired straight to my 3s with the correct resistors and a switch to turn them on and off then i have a little connector for the lights that are connected to the body so i unplug the lights connected to the body and remove the body no problem |
06-28-2012, 06:45 AM | #6 |
Quarry Creeper Join Date: Jul 2008 Location: Stuck in Missouri for now.
Posts: 284
| Re: 12V LED Question
I'm only using a 2s lipo, which is 8.4v. That may not be enough power to get the LEDs to activate. I will find another method.
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