anyone have led bulbs in their car? i bought a led dome light and the damn thing doesnt turn off? even when car is copletely off? it works ok and turns on correctly when you open the door but when u try to turn them off or turn car off they stay lit? not completely lit kinda dim but still not off what the heck is the problem?
Last edited by irondiezl3 : 05-02-2008 at 09:14 PM.
but even if so why would the leds stay on th regular bulb didnt do that?
Because the regular bulb, an incandescent style, has enough resistance that the minute amount of residual voltage left when the car is off, will NOT allow the bulb to light up. An LED bulb has virtually NO resistance, and therefore the minute voltage left behind will just slightly illuminate the LED. As for using a voltage meter to test, the voltage meter would present enough resistance, to effectively show zero volts.
so do i need to worry my cars gunna die? or is this very dim light not going to affect the car over night its at about 5 percent power compared to on regularly.
Unless you leave you car parked for like three months or more without driving it, you have nothing to worry about. That's the great thing about LED's, they use so little power. Once they come down in price, I guarantee they will be the norm for household lighting.
i hope so because i love the led so much i wand to chnge every dam bulb in my car to led. i think its so classy looking. wierd if i remember from my previouc car none of the other bulbs had this issue. maybe just the dome cuz its much bigger idk. im assuming noone knowes how to get to the bulb in the glove box do they? looks like 5 or 6 bolts come out to get to it but not sure thats my next one to replace.
a single led bulb uses about 0.020 Amps per hour. so.. figure that one out. average car battery has what? 400A?
so yeah.. doing the math (figuring its only one bulb) if you were to leave your car untouched for 833.3 days... it'd kill your battery. but thats with the light on. the little bit thats coming through is probably somewhere around 0.001 amp. just enough to produce a pin point of light.
the LED bulbs backfeed. Everyone here is correct. there isn't enough resistance to make it turn all the way off. Unless u cut power completely off to the dome light.
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I dont have an alero no more...
but thats with the light on. the little bit thats coming through is probably somewhere around 0.001 amp. just enough to produce a pin point of light.
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