LED question

[Mdlopez1]

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!
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The original CRASHER : equal parts CRAwler and baSHER!
Sent from my mobile device

[Archangel]

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.

[dadrab]

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.

[NorCal 2500HD]

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.