10-12-2012, 08:31 PM | #1 |
Pebble Pounder Join Date: Jul 2011 Location: Central Florida
Posts: 166
| LED question
This is the first time I've seen this... While crawling, my front white LEDs turned a dim green then turned off... I'm guessing the lights(4) blew and I will need to replace them. But I have never seen that before... I m running a voltage regulator to limit output to each bank (3) at 4 volts max each. Do you think this is a problem with board or LEDs. I will be taking the truck apart again to check voltages and lights but I was wondering about the use of boards this was a first for me, normally I direct wire, is this green glow before burnout normal? Anyway the board claims it can handle 7.2 - 12volts. I was using an 8.4 nimh pack for power... Any insight is helpful.... Thanks The original CRASHER : equal parts CRAwler and baSHER! Sent from my mobile device The original CRASHER : equal parts CRAwler and baSHER! Sent from my mobile device |
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10-12-2012, 09:21 PM | #2 |
Quarry Creeper Join Date: Feb 2012 Location: Fort Worth
Posts: 237
| Re: LED question
I've burned out LEDs with to much voltage before and if I recall correctly I got a dim green before they went out. You may want to look at the acceptable voltages because white LEDs normally have a max voltage of 3.6V. So if you're running 4V then you probably did burn 'em out.
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11-01-2012, 02:36 PM | #3 |
Pebble Pounder Join Date: Feb 2009 Location: Augusta
Posts: 101
| Re: LED question
I cooked a couple of 4V LEDs with 4.2 volts. Don't remember any green glow though. As soon as I touched the hot lead to the LED, it was toast.
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11-01-2012, 04:37 PM | #4 |
Rock Crawler Join Date: Nov 2005 Location: Fremont/Newark, California
Posts: 710
| Re: LED question
Are these 5mm LEDS? You may need to put a resistor inline so this doesnt happen. Ive chunked many leds and they do get a slight green tinge to them right before they pop.
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