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 | Pelican Parts Forums > Porsche Forums > Porsche 911 Technical Forum |  H1 vs H4? | | | User Name | Remember Me? | | Password | |
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| Author | | Thread |  |  | |
| nineball |  | Registered  Join Date: Jun 2009 Location: ohio Posts: 4,306 | H1 vs H4? what's the differences? to my untrained eye they look very similar. thanks. __________________ - He gave his father "the talk" - Once while sailing around the world he found a shortcut - He taught a german shepard how to bark in spanish He is.... nineball. I don't always drive sports cars, but when I do I drive a 1983 911SC Targa. Stay fast my friends. |
 03-23-2011, 01:06 PM | Pelican Parts Catalog | Tech Articles | Promos & Specials  #1 (permalink) | |
| spuggy |  | Registered Join Date: Jul 2003 Location: Glorious Pac NW Posts: 4,125 | H1's take a separate, single-filament bulb for both low and high beam, which can apparently be aimed separately, and the lens focusing/light pattern is also said to be superior to H4. __________________ '77 S with '78 930 power and a few other things. |
| 03-23-2011, 01:42 PM | | Pelican Parts Catalog | Tech Articles | Promos & Specials #2 (permalink) | |
| RSTarga | | Registered Join Date: Dec 2008 Location: San Antonio, Texas Posts: 3,590 | Adjusting an H1 is a real pain! I also don't think the difference is really of any consequence. __________________ 1973 911S (since new) RS MFI specs 1991 C2 Turbo |
| 03-23-2011, 01:50 PM | | Pelican Parts Catalog | Tech Articles | Promos & Specials #3 (permalink) | |
| nineball | | Registered Join Date: Jun 2009 Location: ohio Posts: 4,306 | thanks. either way it will be an upgrade over my lights. added another item to the hershey shopping list... __________________ - He gave his father "the talk" - Once while sailing around the world he found a shortcut - He taught a german shepard how to bark in spanish He is.... nineball. I don't always drive sports cars, but when I do I drive a 1983 911SC Targa. Stay fast my friends. |
| 03-23-2011, 01:53 PM | | Pelican Parts Catalog | Tech Articles | Promos & Specials #4 (permalink) | |
| RSTarga | | Registered Join Date: Dec 2008 Location: San Antonio, Texas Posts: 3,590 | make sure and add a pair of relays so you don't burn out your headlight dimmer switch. __________________ 1973 911S (since new) RS MFI specs 1991 C2 Turbo |
| 03-23-2011, 01:57 PM | | Pelican Parts Catalog | Tech Articles | Promos & Specials #5 (permalink) | |
| Zeke | | Registered  Join Date: Jan 2002 Location: Long Beach CA, the sewer by the sea. Posts: 37,432 | H4's are still made and sold new. H1's have not been made for a long time and finding a pristine set is difficult and expensive. H1's have 4 adjuster screws one of which is attached to a flexible cable and makes a 180 degree turn inside the assembly. If that needs any work, it's gonna be a long week. |
| 03-23-2011, 02:09 PM | | Pelican Parts Catalog | Tech Articles | Promos & Specials #6 (permalink) | |
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| javadog | | Registered Join Date: Apr 2005 Location: outta here Posts: 49,913 | Quote: Originally Posted by RSTarga  Adjusting an H1 is a real pain! I also don't think the difference is really of any consequence. | I have to disagree with this. An H1 is simple to aim, if you ams the beams in the right order. And, you can get less beam separation than what they give you with an H4, which makes both beams more useful. With an H4, you can optimize the low beam or the high beam, then the other will be less than optimum. JR |
| 03-23-2011, 02:18 PM | | Pelican Parts Catalog | Tech Articles | Promos & Specials #7 (permalink) | |
| Joe Bob | | RETIRED  Join Date: Jul 1999 Location: BOULDER Colorado Posts: 39,412 Garage | Joe Bob's Garage | | 2020 Porsche |  Da cab | | H4s are a lot easier to deal with...... __________________ 1983/3.6, backdate to long hood 2012 ML350 3.0 Turbo Diesel |
| 03-23-2011, 03:17 PM | | Pelican Parts Catalog | Tech Articles | Promos & Specials #8 (permalink) | |
| moneymanager | | Registered  Join Date: Jan 2006 Location: Santa Barbara, CA Posts: 2,307 | H1's are an enormous pita unless already in place and in good condition. Finding parts can be nearly impossible; just check the number of threads at the early S registry on recreating needed pieces with old bottle caps and nuts and bolts from Home Depot meant for refrigerator repairs. Add to that the fact that a good pair is really expensive and there's no argument for them at all unless you have a pristine early $100k car that would look dumb with H4's. JMHO. __________________ jhtaylor santa barbara 74 911 coupe. 2.7 motor by Schneider Auto Santa Barbara. Case blueprinted, shuffle-pinned, boat-tailed by Competition Engineering. Elgin mod-S cams. J&E 9.5's. PMO's. 73 Targa (gone but not forgotten) |
| 03-23-2011, 05:15 PM | | Pelican Parts Catalog | Tech Articles | Promos & Specials #9 (permalink) | |
| nesslar | | Wash. State  Join Date: Jun 2006 Posts: 3,569 | H4s are great. I can't really imagine anyone needing more light out front. |
| 03-23-2011, 05:20 PM | | Pelican Parts Catalog | Tech Articles | Promos & Specials #10 (permalink) | |
| Joe Bob | | RETIRED Join Date: Jul 1999 Location: BOULDER Colorado Posts: 39,412 Garage | Joe Bob's Garage | | 2020 Porsche | | Da cab | | H1s are Fuglee, just looked them up. Yack.... This idjut wants 1200 for a pair that look like they came off a Yugo, H1 Headlights 1965-1986 __________________ 1983/3.6, backdate to long hood 2012 ML350 3.0 Turbo Diesel |
| 03-23-2011, 05:23 PM | | Pelican Parts Catalog | Tech Articles | Promos & Specials #11 (permalink) | |
| nesslar | | Wash. State Join Date: Jun 2006 Posts: 3,569 | Barney Fife would say H4s are "the cats"......'nuff said.... |
| 03-23-2011, 05:30 PM | | Pelican Parts Catalog | Tech Articles | Promos & Specials #12 (permalink) | |
| javadog | | Registered Join Date: Apr 2005 Location: outta here Posts: 49,913 | Tough crowd. I've run both H1 and H4 lights for 30+ years. I generally have to aim them just once, when I first install them. None of my H1 lights have any problems, so don't ask me how people end up with broken H1 lights, unless they buy them that way. I run quality bulbs and can't say I've ever burned one out yet, either. SO, what's all the hassle about? JR |
| 03-23-2011, 05:38 PM | | Pelican Parts Catalog | Tech Articles | Promos & Specials #13 (permalink) | |
| Joe Bob | | RETIRED Join Date: Jul 1999 Location: BOULDER Colorado Posts: 39,412 Garage | Joe Bob's Garage | | 2020 Porsche | | Da cab | | Ummmm, price? __________________ 1983/3.6, backdate to long hood 2012 ML350 3.0 Turbo Diesel |
| 03-23-2011, 05:40 PM | | Pelican Parts Catalog | Tech Articles | Promos & Specials #14 (permalink) | |
| zippy_gg | | French Import  Join Date: Jul 2009 Location: Kennesaw, GA, USA Posts: 2,047 Garage | zippy_gg's Garage |  Car with no name | | Quote: | Originally Posted by nesslar H4s are great. I can't really imagine anyone needing more light out front. | Once you've used HID nothing else will satisfy you again. __________________ Gilles & Kathy Happiness is not having a Porsche in the garage... Happiness is having a Porsche on the road! 86 Porsche 911 Cabriolet, 2011 BMW 1200RT, 03 Saab 93 Cabriolet, 06 MB E350 Estate |
| 03-23-2011, 05:50 PM | | Pelican Parts Catalog | Tech Articles | Promos & Specials #15 (permalink) | |
| zippy_gg | | French Import Join Date: Jul 2009 Location: Kennesaw, GA, USA Posts: 2,047 Garage | zippy_gg's Garage | | Car with no name | | Quote: | Originally Posted by Joe Bob H1s are Fuglee, just looked them up. Yack.... This idjut wants 1200 for a pair that look like they came off a Yugo, H1 Headlights 1965-1986 | I like the look of mine. I just wish for more light output, which I won't get from an H4 either...  __________________ Gilles & Kathy Happiness is not having a Porsche in the garage... Happiness is having a Porsche on the road! 86 Porsche 911 Cabriolet, 2011 BMW 1200RT, 03 Saab 93 Cabriolet, 06 MB E350 Estate |
| 03-23-2011, 05:53 PM | | Pelican Parts Catalog | Tech Articles | Promos & Specials #16 (permalink) | |
| dsmeyer | | M491 Coupe Owner  Join Date: Feb 2004 Location: Michigan Posts: 191 Garage | dsmeyer's Garage |  1986 Porsche 911 3.2 | | Most people don't see a difference, but if you look straight at them both side by side from 20 to 50 feet away you will see a noticeable difference. The top 2/3s of an H1 will appear darker when the lights are off because of the different separate reflector design. When the lights are on, the H1s low beams glare much less. Once you know the differences, they are easy to spot. Quote: | Originally Posted by javadog I have to disagree with this. An H1 is simple to aim, if you ams the beams in the right order. And, you can get less beam separation than what they give you with an H4, which makes both beams more useful. With an H4, you can optimize the low beam or the high beam, then the other will be less than optimum. JR | +1 ... H1s have an instruction sticker on them that shows the order that the 4 screws need to be adjusted in to aim them properly. H4s have just 2 screws. It is not a difficult process and when they're right, they do work better than H4s. With the proper relays and 100 watt high beams they work much, much better. There's a reason why they have always been more expensive than H4s. Having owned both H1s and H4s over the last 25 years, my experience is that you will see a very noticeable difference at speed on a dark country backroad. Are they worth the $1000+ asking prices? That's up to you. They do seem to hold their value very well. The last pair I got was 6 or 7 years ago for $600. Many years ago I paid about half that for a pair of new ones. Still expensive for lights at the time, but I never regretted the purchase. I do regret not keeping that new pair when I sold the car. For what it's worth, I wouldn't sell the pair I have for even $1200 unless I was going to sell the car too. __________________ Silver '86 Turbo Look Coupe |
| 03-23-2011, 09:43 PM | | Pelican Parts Catalog | Tech Articles | Promos & Specials #17 (permalink) | |
| MIK911 | | Registered  Join Date: Aug 2001 Location: SoBay, SoCal Posts: 1,369 | Quote: | Originally Posted by dsmeyer For what it's worth, I wouldn't sell the pair I have for even $1200 unless I was going to sell the car too. | H1's for SALE---Cheap!!! I'll take $1199 OBO for mine. Excellent condition. email: bimerz at aol dot com __________________ Mike '86 911 coupe '85 BMW 535i '11 Cayenne |
| 03-23-2011, 10:31 PM | | Pelican Parts Catalog | Tech Articles | Promos & Specials #18 (permalink) | |
| DRACO A5OG | | Member 911 Anonymous  Join Date: Sep 2007 Location: Rancho Palos Verdes Posts: 14,329 Garage | DRACO A5OG's Garage |  Marble Grey |  | Got H1 Housing with H4 Lenses. I liked the pebbled rim as opposed to the clear H1's. OK, I was a noobie back then so now I have 1 spare H1 lens. From what I recollect, they both have the same lens pattern so no biggy: __/__/ Aiming is easy as long as the components are not broken, __________________ '85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC |
| 03-23-2011, 11:10 PM | | Pelican Parts Catalog | Tech Articles | Promos & Specials #19 (permalink) | |
| Zeke | | Registered Join Date: Jan 2002 Location: Long Beach CA, the sewer by the sea. Posts: 37,432 | Quote: | Originally Posted by DRACO A5OG Got H1 Housing with H4 Lenses. I liked the pebbled rim as opposed to the clear H1's. OK, I was a noobie back then so now I have 1 spare H1 lens. From what I recollect, they both have the same lens pattern so no biggy: __/__/ Aiming is easy as long as the components are not broken, | If you look a them side by side, they do not have the same pattern. |
| 03-24-2011, 08:35 AM | | Pelican Parts Catalog | Tech Articles | Promos & Specials #20 (permalink) | |
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