L.E.D city lights
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Joined: May 2007
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From: AL
13 CLS5504, 13 RX350, 13 Yukon
L.E.D city lights
I was surfing ebay today and came across these:
http://cgi.ebay.com/ebaymotors/PIAA-...spagenameZWDVW
Has anyone ever replaced their city lights with these. I wonder how much brighter and more uniform they are with the HID headlights? They probably are better than the 19172's. I found these as low as $50 shipped. As to if they are worth it, who knows.....
http://cgi.ebay.com/ebaymotors/PIAA-...spagenameZWDVW
Has anyone ever replaced their city lights with these. I wonder how much brighter and more uniform they are with the HID headlights? They probably are better than the 19172's. I found these as low as $50 shipped. As to if they are worth it, who knows.....
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From: Caribbean/Florida/Colorado
E-ZGO 53hp., 1999 E 430 sport, 2004 E 55, 2008 Tahoe LTZ on 24"s
I was surfing ebay today and came across these:
http://cgi.ebay.com/ebaymotors/PIAA-...spagenameZWDVW
Has anyone ever replaced their city lights with these. I wonder how much brighter and more uniform they are with the HID headlights? They probably are better than the 19172's. I found these as low as $50 shipped. As to if they are worth it, who knows.....
http://cgi.ebay.com/ebaymotors/PIAA-...spagenameZWDVW
Has anyone ever replaced their city lights with these. I wonder how much brighter and more uniform they are with the HID headlights? They probably are better than the 19172's. I found these as low as $50 shipped. As to if they are worth it, who knows.....
www.spectrumled.com
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From: San Jose, CA
2007 E63 w/P30 and Eurotech CF Diffuser
These do not need the resistor. They clearly have a module driving the LED. The module is how they get more light out of the LED at lower power. Instead of a resistor being used in series with the LED, they are using a real LED driver in the module. Very different that what spectrumled is doing. Although I will say that the the LED current in our tail lights are all controlled by a resistor for each LED. I actually tore apart a S-Class tail light to investigate this at work.
The LED only pulls 250mA for a 1W design. Although I guess they could be using 3 LEDs in series and driving them at about 80mA.
There are plenty of 1Amp LEDs available that are REALLY bright in the 4W/5W class. The problem is the heat dissipation. A regular halogen or xenon can run at 1000C. The LED needs to be kept below 125C to operate reliably. An LED running at 150-175C will not last long. That has been the real challenge in having functional LED headlights. The light efficiency is fine, but trying to keep the temperature down requires extravigant measures. A 2007 Ford GT prototype used LED headlights that were water cooled.
By the way, check out these videos. Hella is probably the manufacturer for Mercedes.
http://www.hella.com/produktion/Hell.../Headlamps.jsp
The LED only pulls 250mA for a 1W design. Although I guess they could be using 3 LEDs in series and driving them at about 80mA.
There are plenty of 1Amp LEDs available that are REALLY bright in the 4W/5W class. The problem is the heat dissipation. A regular halogen or xenon can run at 1000C. The LED needs to be kept below 125C to operate reliably. An LED running at 150-175C will not last long. That has been the real challenge in having functional LED headlights. The light efficiency is fine, but trying to keep the temperature down requires extravigant measures. A 2007 Ford GT prototype used LED headlights that were water cooled.
By the way, check out these videos. Hella is probably the manufacturer for Mercedes.
http://www.hella.com/produktion/Hell.../Headlamps.jsp
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From: Livingston NJ
C63, Grigio Medio E46 M3
I bougt EVERY 194 wedge bulb SpectrumLed sells, and they all didnt work in the front parking lights... Some didnt light up, others stayed on, but a lil dimmer, and some lit up then strobed...Error message everytime... My LED license plate light r still going strong though!!! Thanks to Yacht Master for the resistor trick!
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2006 E500 4matic wagon
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From: El Ay, Cali-fo-ni-A
is Sick as Fu*k
I was surfing ebay today and came across these:
http://cgi.ebay.com/ebaymotors/PIAA-...spagenameZWDVW
Has anyone ever replaced their city lights with these. I wonder how much brighter and more uniform they are with the HID headlights? They probably are better than the 19172's. I found these as low as $50 shipped. As to if they are worth it, who knows.....
http://cgi.ebay.com/ebaymotors/PIAA-...spagenameZWDVW
Has anyone ever replaced their city lights with these. I wonder how much brighter and more uniform they are with the HID headlights? They probably are better than the 19172's. I found these as low as $50 shipped. As to if they are worth it, who knows.....
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