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Old 08-19-2013, 09:34 AM   #1
eronenris
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Default best option for white light headlights instead of yellow

so i currently have the stock bulbs in my headlights and fog lights. i am looking at options to upgrade to halogens. what brands are best? and how long will they last? i know they have a shorter lifespan than the regular bulbs, but is it by a lot? i can get some of the philips brand from my work at cost so they are only $11 per bulb, and $4 per bulb for the fogs. are philips a good brand though?

sorry for a lot of questions, i just want to make sure i get the best value for the money.
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Old 08-19-2013, 01:48 PM   #2
DentMagnet
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Go to bulb maker's websites and check the MTBFs for your candidate bulbs. If all the failure rate numbers are given at the same voltage then you don't have to correct for the effect of voltage on bulb life, which is considerable.

The higher the MTBF/$ ratio, the better value, at least in principle.
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Old 08-19-2013, 09:43 PM   #3
Razgeiz
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LED's FTW more pricey but you can get them in pretty much pure white, which imo looks very sleek running them on my fogs as i have HID low beams
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Old 08-19-2013, 09:46 PM   #4
aerosaaber
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LED replacement headlight bulbs tend to have the color you want but poor output.
Look at Rigid's light bars, HUGE HEAT SINKS on them, and nice light output. LED replacement bulb? NO heat sink (and inside the headlight, NO place for the heat to go)


you want better light output?
or do you just want a color?

if you want better light. www.danielsternlighting.com email him and ask what you should get for best output, follow his instructions.

just looking for color?
buy whatever you think is "super tyte bro"
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Old 08-20-2013, 08:37 AM   #5
alt14
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^ I'm actually working on a retrofit that incorporates a rigid d2 partially in the housing and using air ducts for the heat sinks that are sticking out the back. I assume a smaller rigid industries light could be done with the fog lights too.

Op most leds have a higher lifespan than both halogen and hid bulbs put together, if I'm not mistaken I think my rigid light is rated for 50,000 hours
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Old 08-20-2013, 08:13 PM   #6
Uncle Scotty
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Quote:
Originally Posted by eronenris View Post
so i currently have the stock bulbs in my headlights and fog lights. i am looking at options to upgrade to halogens. what brands are best? and how long will they last? i know they have a shorter lifespan than the regular bulbs, but is it by a lot? i can get some of the philips brand from my work at cost so they are only $11 per bulb, and $4 per bulb for the fogs. are philips a good brand though?

sorry for a lot of questions, i just want to make sure i get the best value for the money.

first....do a LOT more research and read that daniel stern link

and you already have halogen lights and you really dont know enough about lights to do or buy anything and get any sort of 'value' and not blind oncomming traffic at night with stuoid kiddie f00-f00 lights
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Old 08-22-2013, 12:50 PM   #7
Bluefoton
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Just a minor side note OP as Uncle said, your stock headlamp and foglight bulbs are all halogen. Just saying. Research a little bit about bulbs and read Daniel Stern's website.

Also, forget about LED bulb replacement crap. Their emissive surface is nowhere near the size and location of a filament, so the light will go all over the place. LEDs in fogs transform the already useless fogs into even more useless decoration light. The ONE exception I'd personally see as justified for LEDs in fogs is if you rewire them to be used as DRLs.

-bulb upgrade: 9011 HIR in highs, H11 in lows. This way you increase the lumen output while preserving the proper beam pattern.
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Old 08-22-2013, 02:26 PM   #8
Big-E
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Fabricate your own low-beam headlamp harness to allow more power to travel to the bulbs with less impedance.

Change the bulbs as suggested by Bluefoton above.

The 9011 HIR bulbs for the high-beams are a nice change.
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Old 08-22-2013, 02:33 PM   #9
thescreensavers
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Quote:
Originally Posted by Big-E View Post
Fabricate your own low-beam headlamp harness to allow more power to travel to the bulbs with less impedance.

Change the bulbs as suggested by Bluefoton above.

The 9011 HIR bulbs for the high-beams are a nice change.
Is this why the new bulb I put in are dim? I bought some new Philips 9006 bulbs, I think I am just going to put stock back in.

I just want a bulb that's white, to match with my HIDs. The Stock fog housings suck for illumination, even when aimed right they just dont cut it so I dont care about improving it. I installed some LED's and they glared so I got rid of them.
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Old 08-22-2013, 05:38 PM   #10
DentMagnet
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Power lost in the headlight harness -
10' (5' each way) of #16 AWG copper at 3A will give you a 40 mW loss, compared to the headlight consuming about 30 or 40 W.
With all due respect, for the power you gain to the headlight vs. the labor you'd put into it, I don't recommend doing this.

However, at the opposite end, there was a car that burned out headlights too often and the factory fix was putting a foot or so of thin wire in series with the headlights, in lieu of a resistor.
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Old 08-22-2013, 08:01 PM   #11
Big-E
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I've built three low-beam headlamp harnesses and one high-beam harness.

The low-beam harnesses were made for two WRX's and one Miata and the high-beam harness for the Miata.

I used 12-gauge wire to the relays and then a separate 14-gauge wire to each lamp for power, as well as for a 14-gauge wire from each lamp for ground.

In one case, I set-up the low-beam harness to have three micro relays: main, left, right. If the main goes out, you can swap one of the beam relays (left or right) and have at least one functioning lamp.

Yes, fabricating each of these harnesses was very labor intensive, however the increase in output is noticable. I'm not an engineer and I do not have access to any kind of light-meter or equivalent to test lumens output. This is based on visual testing only, day and night.

Subaru uses a single power wire to feed both the low and high-beam lamps. The system is ground-switched and thus there are two separate ground wires, one for the low-beam and one for the high-beam.

For each WRX, the new low-beam harness feeds the low-beam bulbs, and the existing power feeds just the high-beam bulbs.
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Old 08-22-2013, 08:54 PM   #12
DentMagnet
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Good relay contacts may drop up to 30 mV at rated current so the wire voltage loss may be less than the relay contact loss.

In any case, while we're on the subject of lights, camera supply stores have Gray Cards that reflect a predictable 18% of the light falling on them. With this card and any digital camera you can make relative measurements of light intensity.

The headlight lights the card and the auto exposure camera sees the card and reads out an Exposure Value. The angles between the headlight beam axis, the card and the camera should be the same for each measurement, as well as the distances.

I guess for relative measurements you can also use any piece of white copy paper as long as you use the same paper for each measurement. This kind of paper reflects about 70% of the light falling on it but it's not predictable and over time it will absorb moisture so its reflectance may change.

When I got into this lumens business, I needed a flashlight that could light street signs 30' away from my car and my 1 million CP light was broken.
Turns out I already had a little flashlight that can do that from what I measured - beam angle, lumens, candlepower, the whole bit, and it runs on two AA cells.
But I have yet to try it at night, in the city, in fog.

Last edited by DentMagnet; 08-22-2013 at 09:07 PM.
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Old 08-23-2013, 10:11 AM   #13
CRAZYHAWK
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You might try H9 to replace the H11 for the low beams. You'll have

to modify the base.
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