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2013 Forester XT 4EAT
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Discussion Starter · #1 ·
Has anyone installed these on their SH yet? 9005 high beam replacement LED bulbs.

I searched Ebay and can find many LED 9005 replacements. It's looking like I need one that is "no error"? There's pictures of Honda Civics using these LED's.

I know that the daytime running light is the high beam bulb at half voltage. Will any of these ebay replacements be able to run at half voltage?

Please post pics and the exact brand you bought if you have them, thanks.
 

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2016 & 2018 2.5i Premium CVT
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It's very unlikely that any LED array would work at much less than its specified voltage. An individual LED requires a certain amount of voltage before it will turn on, typically something in the 2 to 3.5 volt range depending on its color. See my LED tutorial for details on this. LED arrays are designed with series and parallel connections such that each individual LED will see that much voltage, while minimizing the amount of power wasted in the necessary limiting resistors.

It is uncertain what voltage would actually be present across the LED replacement bulbs in this application. The DRL circuit employs a voltage divider, where voltage is split between the lights and the DRL resistor in proportion to their resistance. If this works out to half voltage for the stock bulbs, that's because the DRL resistor is of the same resistance as the bulbs. You could expect the LEDs to show a higher resistance (i.e. require less current) than the incandescents, so the voltage across the LEDs could easily be higher than that across the stock bulbs. But even if it were to be barely enough to light them up, you probably wouldn't see much of any difference in brightness.
 

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My understanding, as above, is that LED's (those commonly used in automotive lighting) have little to no voltage variation to brightness variation.

That is to say, put 3v across an LED, itll be the same brightness as if you put 5v (If it was a 3v led), but put 2.5v across the LED, you won't see much if anything.


From what I've been reading, current LED technology just simply isn't capable of producing the standard high or low beam brightness in the available space.

Sure, stick 5000 LEDs on a massive circuit board, and itll be extremely bright, but won't fit onto the board size required to fit in a headlamp socket.

Even stuff like Indicator LEDs, like the aftermarket Putco ones, have up to 10 LEDs on the one board to get the necessary brightness, but much more than that and you simply havent got the physical space available to cater for all the LED's you are going to need.

My 2c
 

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2013 Forester XT 4EAT
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Discussion Starter · #6 ·
Google came up with these...

JLC Lighting DRL LED with Module for '09-'12 TL - AcuraZine Community

HID Xenon White 9005 9006 Bulbs For Fog Lights, Running Lights

Nicest-Cleanest-BEST-NON-Rice-9005 DRL LED??? - Club Lexus Forums

These flashlights run on 3.6 volts on a single LED and are bright as daylight, I don't see why anyone hasn't put an automotive application to it yet.

Stinger® Series - Stinger® LED HP | Streamlight

I know that the new Corolla and the new Mercedes E-Class both use LED headlamps, but they are running at 12 volts.
 

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Just chiming in here. I replaced my highbeams with LED DRLs from ijdmtoy.com. They were a little pricey at $45, but definitely worth it. They look great and aggressive.

I also replaced the tiny bulbs in the headlight housing with 196/168 LED bulbs for consistency (also purchased from ijdmtoy).

Hope that helps.
 

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Discussion Starter · #8 ·
Just chiming in here. I replaced my highbeams with LED DRLs from ijdmtoy.com. They were a little pricey at $45, but definitely worth it. They look great and aggressive.

I also replaced the tiny bulbs in the headlight housing with 196/168 LED bulbs for consistency (also purchased from ijdmtoy).

Hope that helps.
Do you have any pictures?
 

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Hello! Also was looking into changing my drl. Found out drl bulb is the same bulb as high beam just at a lower output. I did some looking around the only led 9005/ hb3 that runs dlr AND hi beams respectively is this:

9005 (HB3) Cree LED Daytime Running Light & High Beam Kit

Really expensive, priced like hid's

I started looking because I had some auto led bulbs lying around when I wanted 'white' interior lights in my gf's vw bug. Turns out I could only do the license plate and trunk and I got a bulk from china for cheap. Found out they fit the 'parking' lights(4 in total up front)


I would like a white drl also but with the hi beam being actually bright.
 

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Sorry for the long delay. Here are my pics from the LEDs bulbs replacing the DRL/Hi beam.







Hope this helps.
 

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I have them in low and high beams as well as my fog lights. I think I have them in my running lights, but not sure. I can't remember how much I paid but I think it was $300 for each option.
 

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btw, i also got an extra set of 168/194 5 LED bulbs and replaced the small amber bulbs in the headlight housing to match the color of the LED DRLs.

Might want to do that too since you are going to be paying shipping.
 
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