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Qxxx4 »
https://forums.nicoclub.com/qxxx4-u85589.html
Wed Aug 08, 2012 5:37 pm
I'm currently switching all my LED's in my QX4 back to incandescent.
I used ALL bulbs from Ebay, tried replacing pretty much every single bulb to LED. In the end LED was just not meant for Exterior lighting, at least the ebay stuff. It looked snazzy on but just didnt look safe or visible in bright daylight.
Interior I switched everything:
-Dome lights both had a white 16x16 SMD board which was way too bright and by the time I removed them half the SMD'd did not work or flickered. I now installed GE nighthawk incandescent bulbs
- I converted the dash lights to blue, but the LED's kept blowing right away. I ended up using my own 3mm blue LED's with 0.25W resistors (i forget the resistance I used though)...These have worked for 2 years, but they just are not as bright as regular bulbs and the red needles are very dim. I will be switching these back to regular bulbs soon.
-Transmission shifter had a blue LED but this blew right away, and thanks to the LED protruding a bit much, it got stuck and broke my P R N D placard, which I still am trying to find a replacement, once i do a regular bulb is going back. The blue LED was barely visible when it worked
-My 4WD switch, this was easy, I used a red LED on the dial portion and blue LED's on the selections again my own 3mm LED's with same resistor config as the dashboard, the blue ones blew within a year, the dials red LED still works and looks great.
-Climate control LED's.....a total of 5 hours converting this. Under the "AUTO?MODE" buttons there is a clear plastic piece to spread the illumination, i ended up drilling a hole to insert 2 of my 3mm LED's, blue...they looked spectacular. BUT once I did the other buttons, i could never get an even intensity. These bulbs ALL blew individually within a year.
-The green Dot matrix displays on the HVAC and Compass/Thermometer I simply put purple cellophane to convert them to blue to match my pioneer head unit, these look amazing but in daylight are very dark. I will be removing that cellophane when I have time
So, the verdict? LED's rule, in some applications, but my QX4 is a 1999.5, and all parts were designed without the intention of LED, which has very linear light patterns and the opacity of gauges and dials were meant for incandescent. It looked cool for a while but the damn things kept blowing. I refused to pay dozens of dollars for LED's from a reputable site, maybe those would have lasted, but I really played around with resistances and LED's and they simply were not reliable. The DC voltage in a car is very dirty, to really get reliable LED's you need proper voltage regulators/diodes before the LED.
I've got a 2012 mustang with ambient lighting, LED taillamps etc, and the dome lights are regular incandescent. It hit me then that everything is designed to have a certain bulb, just keep it that way!
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