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Old 02-04-2003, 10:23 AM   #1
nomadtw
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Default 9003<h4?

i noticed that the H4 and the 9003 bulb that my car takes look physically identical, use the same wattage

however the purpose of the H4 lists as motorcycle/offroad vehicle....

and the spec sheet doesn't list light output as it does for the 9003....

anyone shed some light?
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Old 02-05-2003, 12:07 PM   #2
nomadtw
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nobody knows the difference?
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Old 02-10-2003, 09:41 AM   #3
nomadtw
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last bump
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Old 02-10-2003, 06:30 PM   #4
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9003 and H4 bulbs are the same thing.

H4 is a European designation; 9003 is a DOT designation. European lights are only legal in the US if they're used off-road or on motorcycles.

I think technically the specification for 9003 bulbs is a little stricter on how well the filament is wound, but it doesn't matter as long as you use a decent bulb.

For all intents and purposes, the bulbs are interchangeable.
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Old 02-12-2003, 12:00 PM   #5
nomadtw
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is there any difference in brightness?
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Old 02-12-2003, 07:25 PM   #6
North Ursalia
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9003 = H4 just like ketchup = catsup. They are the same thing- one is not brighter than the other. Two names for the same thing.


Brian
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Old 02-13-2003, 12:21 AM   #7
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so is there anything i can put in that's brighter that'll just swap in?
right now i have sylvania cool blues and they're like 1.25x brighter than stock, it makes a difference, but i'd like something brighter than that.
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Old 02-13-2003, 01:09 AM   #8
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Get rid of all that 'cool blue' and xenon type crap... it's foo foo dust. The eye is less responsive to blue light than to a bright white light. You could always get higher wattage bulbs if you need a bit more light or upgrade the headlamps (I went to Morettes for instance ).


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Old 02-13-2003, 11:56 AM   #9
wieger54
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Quote:
Originally posted by nomadtw
so is there anything i can put in that's brighter that'll just swap in?
right now i have sylvania cool blues and they're like 1.25x brighter than stock, it makes a difference, but i'd like something brighter than that.
I went the same route also. They seem brighter but what North Ursalia they're more than likely not. I leave my Fog/driving lights on all the time whick helps a bunch. Make sure you aim them or you'll get people flashing you. I'm going to up grade to Catz HID replacments. You'll have to get the H4's. I really don't care if they're for off road use only. I'm not going to be in the states much longer.
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Old 02-13-2003, 01:50 PM   #10
nomadtw
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the cool blues actually have a light color of 4100k they're not blue like apc blue, which is something like 5700k
they're white, as white as a white LED
they only have a blueish tint to them compared to a white light

i got them because pep boys doesn't have the silverstars, and i read the spec sheet and these put out the same number of lumens.

i was very hesatent to buy them in the case that they'd be blue like the apc lights, but they're not

i will be upgrading to the apc headlights and i know that brighter bulbs can be put in those, and high beams can be wired to have both beams on, but until i have the money for that (engagement ring) i am hoping to maximize my light output of the stock hl's
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Old 02-13-2003, 06:11 PM   #11
wieger54
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Quote:
Originally posted by nomadtw
the cool blues actually have a light color of 4100k they're not blue like apc blue, which is something like 5700k
they're white, as white as a white LED
they only have a blueish tint to them compared to a white light

i got them because pep boys doesn't have the silverstars, and i read the spec sheet and these put out the same number of lumens.

i was very hesatent to buy them in the case that they'd be blue like the apc lights, but they're not

i will be upgrading to the apc headlights and i know that brighter bulbs can be put in those, and high beams can be wired to have both beams on, but until i have the money for that (engagement ring) i am hoping to maximize my light output of the stock hl's
I don't know about my cool blues. Yes, they were better than the stock ones right after I installed them. But now....they just seem so dim if I turn off the fogs. Are you going to be up grading to these APC GEN II PROJ. IMPRZZA 95-0 ? Which ones are they? THe ones in the top left corner look kinda' like those off the Electra Impreza. I might be way off by saying that. I think the carbon ones would look good with a carbon hood. Maybe...maybe too much. If they are a great fit and good quality then I might get some. I'll wait till other people experiment like yourself. I'm one of those people that believes you get what you pay for. I should know. I bought some corners that were made in Taiwan instead of China. I saved $40. They suck major arse! The only thing holding them in is the one screw. They flap around when I wash the car. POS! Good luck on your purchase though. I haven't heard anything good about APC yet...maybe there's a reason.

mike...
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Old 02-14-2003, 02:15 AM   #12
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Listen to Brian. Personally, I avoid anything with a tint to it. All they do is filter the visible light. Why would you want to do that? I want a truly clear and brighter light (not filtered). I tried the Silverstars (slight tint) and ended up switching to XtraVisions (clear).
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Old 02-14-2003, 04:55 AM   #13
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Quote:
Originally posted by nomadtw
i will be upgrading to the apc headlights
These two words do not belong in the same sentence!

Khail
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Old 02-14-2003, 10:30 AM   #14
nomadtw
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do a search on the procarparts headlights, they're the same thing and ppl like 90% are happy w/ them say they fit great,


and that little 4 picture is not of the imprezza lights


those are the ones

they also make but don't likes on the site ones w/ built in halo but tha'ts really not my thing,

i'm gonna paint them and do the matched corner mod
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