Need help with Angel Eye voltage / measurement.
01-14-2009, 10:01 AM
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Originally Posted by nigxdoof' post='767779' date='Jan 14 2009, 01:00 PM
Cool. Good info Rich, Thanks.
where W= power
W = I<squared2> x R
W = V<squared2> / R
Go with a higher wattage resistor so things don't get too hot! You can put two in series to double the resistance or parallel to half the resistance.
01-14-2009, 10:31 AM
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Originally Posted by Brit_in_NJ' post='767843' date='Jan 14 2009, 02:01 PM
Once you have the resistor sized then you need to find the wattage you will need, both of these equations work.
where W= power
W = I<squared2> x R
W = V<squared2> / R
Go with a higher wattage resistor so things don't get too hot! You can put two in series to double the resistance or parallel to half the resistance.
where W= power
W = I<squared2> x R
W = V<squared2> / R
Go with a higher wattage resistor so things don't get too hot! You can put two in series to double the resistance or parallel to half the resistance.
Let me find out the voltage first and we can work from there.
01-14-2009, 10:35 AM
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Originally Posted by nigxdoof' post='767878' date='Jan 14 2009, 02:31 PM
Darn, you just lost me. LOL.
Let me find out the voltage first and we can work from there.
Let me find out the voltage first and we can work from there.
01-15-2009, 12:07 AM
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nigxdoof,
assuming it is the angel eyes for older models (pre-lci), the stock AE bulbs were rated 12v, 10watts. I measured the voltage of the angel eyes a couple of years ago and don't remember the values being much higher than 12v. The light module controls the power to the angel eyes pretty well.
the LED listed below with the forward current of 25ma will be very very dim. for comparison, the predator ice output is 5 watts. stock bulb use 10 watts. wattage is not directly related to how much light can be seen but it does give us an idea of how bright the object may be. the power dissipation of the LED below = maxcurrent x forward voltage => power = .025A x 3.6V => 0.09W. I think for the angel eyes to be noticeable, the LED should be able to take in at least 1A (1000mA) or higher. This is a ballpark figure since some LED uses a bigger forward voltage but lower current. More light and more current will generate more heat. When dealing with those high power LED, big heatsinks are needed or LED will probably burn up in a matter of less than a minute.
assuming it is the angel eyes for older models (pre-lci), the stock AE bulbs were rated 12v, 10watts. I measured the voltage of the angel eyes a couple of years ago and don't remember the values being much higher than 12v. The light module controls the power to the angel eyes pretty well.
the LED listed below with the forward current of 25ma will be very very dim. for comparison, the predator ice output is 5 watts. stock bulb use 10 watts. wattage is not directly related to how much light can be seen but it does give us an idea of how bright the object may be. the power dissipation of the LED below = maxcurrent x forward voltage => power = .025A x 3.6V => 0.09W. I think for the angel eyes to be noticeable, the LED should be able to take in at least 1A (1000mA) or higher. This is a ballpark figure since some LED uses a bigger forward voltage but lower current. More light and more current will generate more heat. When dealing with those high power LED, big heatsinks are needed or LED will probably burn up in a matter of less than a minute.
Originally Posted by nigxdoof' post='767181' date='Jan 13 2009, 05:24 PM
Hi All,
Does anyone know the correct voltage for the angel eye bulb?
I'm trying to work on something and put a few LED's in place of the single angel eye bulb.
I have these 3.3/3.6v LED bulbs
Specs:
FW current: 25ma
FW Supply: 3.3v (Typical), 3.6v (max)
LED from radio shack, Part# 276-0017.
I would like to have two of these connected to the angel eye portion. Now what resistor would I need in order for the bulbs to work and the car would not give an error message?
Please help!
Thanks in advance!
Does anyone know the correct voltage for the angel eye bulb?
I'm trying to work on something and put a few LED's in place of the single angel eye bulb.
I have these 3.3/3.6v LED bulbs
Specs:
FW current: 25ma
FW Supply: 3.3v (Typical), 3.6v (max)
LED from radio shack, Part# 276-0017.
I would like to have two of these connected to the angel eye portion. Now what resistor would I need in order for the bulbs to work and the car would not give an error message?
Please help!
Thanks in advance!
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