Aftermarket headlights baked and opened
08-27-2006, 05:35 AM
#21
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08-28-2006, 03:51 AM
#27
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Originally Posted by Yanki01
which type of projector did you order?
Here are the approximate dimensions:
width: 2 5/8" Edge to Edge
width: 2 1/4" Lens
Lenth: 5 1/4" Depth without bulb holder
If you look at the two bottom screws, the orientation is exactly like the aftermarket's projector. Hopefully this will fit fine. If not, I'll make some adjustment
08-28-2006, 05:25 AM
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Well come on man you got to update...Which projectors did you order? Because I had the same idea but glad to see someone that actually did it, I hope everything turns out great man! Keep us posted
08-28-2006, 11:39 PM
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sounds like he went with e46 projectors. if you need ballast to match let me know. i have a nice set of oem bmw ballast i just got 3 days ago for free and i could cut you a nice price you cant beat .
08-31-2006, 02:00 AM
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It looks like I won't get the projector until friday, I'll post more when I get it.
In the meantime, I do have one question for any of electronic literate out there.
I will be using 12 LEDs (each has a forward voltages of 2.3 and reverse voltage of 5) I want to connect these 12 LEDs to the parking light wires (parking light wires have 12.7 volt. These 12 LEDs will be compiled to a stip of leds
From my calculation, I have 12.7V - 2.3V = 10.4V, which approximate 100 Ohm. Should I use 12 "100 Ohm" resistors or should I use 12 "8.3 Ohm" (100/12) resistors?????
Can someone help?
In the meantime, I do have one question for any of electronic literate out there.
I will be using 12 LEDs (each has a forward voltages of 2.3 and reverse voltage of 5) I want to connect these 12 LEDs to the parking light wires (parking light wires have 12.7 volt. These 12 LEDs will be compiled to a stip of leds
From my calculation, I have 12.7V - 2.3V = 10.4V, which approximate 100 Ohm. Should I use 12 "100 Ohm" resistors or should I use 12 "8.3 Ohm" (100/12) resistors?????
Can someone help?
08-31-2006, 03:10 AM
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Originally Posted by WhiteBlazer01
^^^ I wouldn't wire all 12 of them in series. Wire 4 in series, and have 3 groups of 4. Use 1 150ohm resistor for each group.
thanks
08-31-2006, 04:43 AM
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Originally Posted by Noodle
Originally Posted by WhiteBlazer01
^^^ I wouldn't wire all 12 of them in series. Wire 4 in series, and have 3 groups of 4. Use 1 150ohm resistor for each group.
thanks
R = (Vs - Vl) / I
Vs = Source Voltage = 12.2V (you should actually test whether it is 12.2 or 14.4)
Vl = Lead Voltage = 2.3V x 4 (4 LED's in the array)
I = Forward Current = 20mA
R = (12.2 - (2.3 x 4)) / .020A (NOTE: You use Amps, not milliamps. 20mA = .020A)
R = (12.2 - 9.2) / .020
R = 3 / .020
R = 150
08-31-2006, 05:01 AM
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Originally Posted by WhiteBlazer01
Originally Posted by Noodle
Originally Posted by WhiteBlazer01
^^^ I wouldn't wire all 12 of them in series. Wire 4 in series, and have 3 groups of 4. Use 1 150ohm resistor for each group.
thanks
R = (Vs - Vl) / I
Vs = Source Voltage = 12.2V (you should actually test whether it is 12.2 or 14.4)
Vl = Lead Voltage = 2.3V x 4 (4 LED's in the array)
I = Forward Current = 20mA
R = (12.2 - (2.3 x 4)) / .020A (NOTE: You use Amps, not milliamps. 20mA = .020A)
R = (12.2 - 9.2) / .020
R = 3 / .020
R = 150
AHHHHHHHHH I rely on your source base on your works with the LEDs. But did you concluded that Vs is 12.2 or was that a typo. I tested the wire and it said 12.7. If we use 12.7, then we would get 175 Ohm