Notices
ScoobyNet General General Subaru Discussion
Sponsored by:
Sponsored by:

H4 LED Headlights

Thread Tools
 
Search this Thread
 
Old 17 July 2017, 02:58 PM
  #1  
scooby-k
Scooby Regular
Thread Starter
 
scooby-k's Avatar
 
Join Date: Sep 2002
Location: midlands
Posts: 1,435
Likes: 0
Received 0 Likes on 0 Posts
Default H4 LED Headlights

Has anyone used H4 LED headlight bulbs on a classic and was there any problems?
Old 18 July 2017, 07:38 AM
  #2  
alcazar
Scooby Regular
iTrader: (2)
 
alcazar's Avatar
 
Join Date: Jun 2002
Location: Rl'yeh
Posts: 40,781
Received 27 Likes on 25 Posts
Default

LOL, there's one BIG problem, they are crap.

The car's headlights are rubbish to start with, scattering light everywhere, so add in a b@stard contraption like an H4 HID bulb and you have the recipe for disaster.

Basically, the problem is that the accurate positioning of a bulb's filaments is vital in controlling where light will be put on the road, and the amount of scatter. You've only to fit a bulb SLIGHTLY wonky, or use cheap Chinese copy bulbs, to see that this is true.

So we come to the H4 HID, which can have ONE filament almost perfectly positioned, but not both. So you get either gret main beam and utterly rubbish dip, or vice versa. In fact, they go for OK-ish in both, but the scatter is awful.

And why do I say that one filament is ALMOST perfectly positioned? Because the shape of the HID bulb's arc is vastly different to the shape of an H4 bulb, it's even in the wrong orientation.

So my advice is steer clear. Go for uprated bulbs to see by.
Old 18 July 2017, 10:03 AM
  #3  
1509joe
Scooby Regular
iTrader: (2)
 
1509joe's Avatar
 
Join Date: Jan 2009
Location: Not sure
Posts: 3,296
Received 278 Likes on 248 Posts
Default

Originally Posted by alcazar
LOL, there's one BIG problem, they are crap.

The car's headlights are rubbish to start with, scattering light everywhere, so add in a b@stard contraption like an H4 HID bulb and you have the recipe for disaster.

Basically, the problem is that the accurate positioning of a bulb's filaments is vital in controlling where light will be put on the road, and the amount of scatter. You've only to fit a bulb SLIGHTLY wonky, or use cheap Chinese copy bulbs, to see that this is true.

So we come to the H4 HID, which can have ONE filament almost perfectly positioned, but not both. So you get either gret main beam and utterly rubbish dip, or vice versa. In fact, they go for OK-ish in both, but the scatter is awful.

And why do I say that one filament is ALMOST perfectly positioned? Because the shape of the HID bulb's arc is vastly different to the shape of an H4 bulb, it's even in the wrong orientation.

So my advice is steer clear. Go for uprated bulbs to see by.
Their pure scrap as above
Old 18 July 2017, 11:24 AM
  #4  
NOSSY_89
Scooby Regular
 
NOSSY_89's Avatar
 
Join Date: Oct 2011
Location: Birmingham
Posts: 2,910
Received 447 Likes on 371 Posts
Default

Wait guys I think he was on about the LED bulbs and not HIDs which has been a massive no since as far back as I can remember with the classics . I didn't realise they did them but know you can get them in sidelights
Old 18 July 2017, 02:11 PM
  #5  
alcazar
Scooby Regular
iTrader: (2)
 
alcazar's Avatar
 
Join Date: Jun 2002
Location: Rl'yeh
Posts: 40,781
Received 27 Likes on 25 Posts
Default

So he was. Same arguments, I'm afraid. No LED bulbs yet replicates the filament position of a halogen.
Old 18 July 2017, 03:14 PM
  #6  
NOSSY_89
Scooby Regular
 
NOSSY_89's Avatar
 
Join Date: Oct 2011
Location: Birmingham
Posts: 2,910
Received 447 Likes on 371 Posts
Default

Originally Posted by alcazar
So he was. Same arguments, I'm afraid. No LED bulbs yet replicates the filament position of a halogen.
Good to know

I have used them in the sidelights but lets be honest the original lights on a classic are terrible. I remember someone mentioning on here to get better bulbs as a possible solution.
Old 19 July 2017, 07:21 AM
  #7  
salsa-king
Scooby Senior
 
salsa-king's Avatar
 
Join Date: Feb 2000
Location: Nottm
Posts: 15,067
Received 42 Likes on 26 Posts
Default

i got these for my main beam... seem very good
http://www.ebay.co.uk/itm/Nighteye-2...item3d238aaa06

Trending Topics

Old 19 July 2017, 08:21 AM
  #8  
alcazar
Scooby Regular
iTrader: (2)
 
alcazar's Avatar
 
Join Date: Jun 2002
Location: Rl'yeh
Posts: 40,781
Received 27 Likes on 25 Posts
Default

But those are H3, with only one filament, so much easier to get the light where it's supposed to be.
Old 19 July 2017, 11:04 AM
  #9  
NOSSY_89
Scooby Regular
 
NOSSY_89's Avatar
 
Join Date: Oct 2011
Location: Birmingham
Posts: 2,910
Received 447 Likes on 371 Posts
Default

Not sure if the link will work but have a look at these

http://www.eurocarparts.com/ecp/c/Su...fe74c42&000384

Phillips Racing 150%

They have voucher codes so they should be a lot cheaper.
Old 19 July 2017, 11:07 AM
  #10  
scoobypaul_temp
Scooby Regular
iTrader: (2)
 
scoobypaul_temp's Avatar
 
Join Date: May 2015
Location: milk n beans
Posts: 577
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by NOSSY_89
Not sure if the link will work but have a look at these

http://www.eurocarparts.com/ecp/c/Su...fe74c42&000384

Phillips Racing 150%

They have voucher codes so they should be a lot cheaper.
Great price with the current midmonth35 discount - £12.34
Old 19 July 2017, 02:40 PM
  #11  
scooby-k
Scooby Regular
Thread Starter
 
scooby-k's Avatar
 
Join Date: Sep 2002
Location: midlands
Posts: 1,435
Likes: 0
Received 0 Likes on 0 Posts
Default

much cheaper than the LED ones I was looking at they were nearer £60. the LED were very bright but if the light pattern is no good then they wouldn't be any good.
Old 19 July 2017, 04:16 PM
  #12  
NOSSY_89
Scooby Regular
 
NOSSY_89's Avatar
 
Join Date: Oct 2011
Location: Birmingham
Posts: 2,910
Received 447 Likes on 371 Posts
Default

Those are meant to be really bright, its worth a shot, have a look at the reviews online.
Old 19 July 2017, 04:44 PM
  #13  
johned
Scooby Regular
 
johned's Avatar
 
Join Date: Jan 2010
Location: derbyshire
Posts: 2,002
Likes: 0
Received 16 Likes on 12 Posts
Default

Great price with promo code for excellent Philips bulbs in my opinion.
Old 19 July 2017, 04:57 PM
  #14  
jaygsi
Scooby Regular
iTrader: (46)
 
jaygsi's Avatar
 
Join Date: Apr 2007
Location: uk
Posts: 14,530
Received 256 Likes on 222 Posts
Default

Yeah I've used LED sidelights, there abit weird how the light is shone. Not a fan. What watt headlight bulbs would people recommend? As I need some too.
Old 20 July 2017, 08:49 AM
  #15  
alcazar
Scooby Regular
iTrader: (2)
 
alcazar's Avatar
 
Join Date: Jun 2002
Location: Rl'yeh
Posts: 40,781
Received 27 Likes on 25 Posts
Default

Use standard wattage, but buy so called "uprated" bulbs. I have the Ring 150% (iirc) in my Arsestra and they are pretty good.
The Scoob has proper HID projectors, I fitted those too..
Old 20 July 2017, 01:33 PM
  #16  
NOSSY_89
Scooby Regular
 
NOSSY_89's Avatar
 
Join Date: Oct 2011
Location: Birmingham
Posts: 2,910
Received 447 Likes on 371 Posts
Default

Originally Posted by jaygsi
Yeah I've used LED sidelights, there abit weird how the light is shone. Not a fan. What watt headlight bulbs would people recommend? As I need some too.
The Philips Bulbs mate and just wait till there is an offer on lol

What did you mean by the sidelights, got LED ones but they came with the car so haven't really noticed. Can't remember what my previous classic side lights were like in comparison because it was so long ago.

Originally Posted by alcazar
Use standard wattage, but buy so called "uprated" bulbs. I have the Ring 150% (iirc) in my Arsestra and they are pretty good.
The Scoob has proper HID projectors, I fitted those too..
If anyone is wondering

https://www.scoobynet.com/technical-...mpler-way.html

Its a good guide to uprating the stock lights lol
Old 20 July 2017, 04:19 PM
  #17  
1509joe
Scooby Regular
iTrader: (2)
 
1509joe's Avatar
 
Join Date: Jan 2009
Location: Not sure
Posts: 3,296
Received 278 Likes on 248 Posts
Default

http://www.ebay.co.uk/itm/Ring-Rally...-/360770865579
Also get ceramic connectors or the stock ones melt.

Last edited by 1509joe; 20 July 2017 at 04:21 PM. Reason: More info
Old 22 July 2017, 12:32 PM
  #18  
NOSSY_89
Scooby Regular
 
NOSSY_89's Avatar
 
Join Date: Oct 2011
Location: Birmingham
Posts: 2,910
Received 447 Likes on 371 Posts
Default

If anyone buys uprated bulbs let us know what you think of them also put up some comparison pics
Old 22 July 2017, 06:55 PM
  #19  
mickywrx
Unmapped 12.4s @ 105
iTrader: (29)
 
mickywrx's Avatar
 
Join Date: Apr 2005
Location: Newcastle. 330bhp-289lb/ft @ 1bar boost - 12.4s @ 105mph
Posts: 11,776
Likes: 0
Received 4 Likes on 4 Posts
Post

Originally Posted by NOSSY_89
If anyone buys uprated bulbs let us know what you think of them also put up some comparison pics
Why not just go and buy some and see for yourself, you tight sod!

Besides, what someone thinks is decent might not be the same as your thinking. Also, comparison pics are only of any real use if the car is parked in one place and the bulbs are swapped in situ, which no one ever does.

I've tried all sorts of "uprated" bulbs over the last 12 years or so that I've had my car, Halfords super brilliance or whatever they were called, HID's, 100w Phillips Rally, currently using some PIAA bulbs.

Pay the money and try stuff yourself, only then will you know what works for you and your eyesight.
Old 22 July 2017, 09:08 PM
  #20  
jaygsi
Scooby Regular
iTrader: (46)
 
jaygsi's Avatar
 
Join Date: Apr 2007
Location: uk
Posts: 14,530
Received 256 Likes on 222 Posts
Default

Someone's In a grumpy lol
Old 23 July 2017, 12:27 PM
  #21  
NOSSY_89
Scooby Regular
 
NOSSY_89's Avatar
 
Join Date: Oct 2011
Location: Birmingham
Posts: 2,910
Received 447 Likes on 371 Posts
Default

Originally Posted by mickywrx
Why not just go and buy some and see for yourself, you tight sod!

Besides, what someone thinks is decent might not be the same as your thinking. Also, comparison pics are only of any real use if the car is parked in one place and the bulbs are swapped in situ, which no one ever does.

I've tried all sorts of "uprated" bulbs over the last 12 years or so that I've had my car, Halfords super brilliance or whatever they were called, HID's, 100w Phillips Rally, currently using some PIAA bulbs.

Pay the money and try stuff yourself, only then will you know what works for you and your eyesight.
I think you misunderstood what I was trying to say or it didn't come across as intended.

My car has bulbs already and don't need to change them, its a weekend car and is mainly driven in the city. Well thats all it does really lol or gets parked up if something breaks.

Now in this topic there were quite a few different options posted by myself and other members. It would be good if people did a before and after which can be done in a drive away or dark road because it only takes a few minutes to swap the bulbs over. There were some pics of someone who had changed their bubls/lights and you could see the difference very clearly. Technology changes so if other people saw this topic and decided to try out one of the bulbs because they feel their classic lights are no good then they might put up some pics so we can all see the comparisons and make an informed decision. It assists other people and thats what a forum is about.

If you also have a look at the link I posted where one member has modified their lights again you can see how much of an improvement the mod was. Like you said you have tried many bulbs so in your opinion are there any preferences and do you care to share your experience.

Originally Posted by jaygsi
Someone's In a grumpy lol
I know lol he kicks off with you about the mirrors and now starts on me about the bulbs what next screen wash

Last edited by NOSSY_89; 23 July 2017 at 12:28 PM.
Old 05 August 2017, 10:51 PM
  #22  
jaygsi
Scooby Regular
iTrader: (46)
 
jaygsi's Avatar
 
Join Date: Apr 2007
Location: uk
Posts: 14,530
Received 256 Likes on 222 Posts
Default

Ok here we go, i currently have some cheap Chinese bulb H4's fitted, but thought i'd try these, if you look at the pictures there does seem to be a slightly better light. Not massively different than the cheap Chinese ones but improvement.

Drivers side is Philips bulb passengers side is Chinese bulb

Next i will be trying the Phillips Racing 150%











Originally Posted by NOSSY_89
If anyone buys uprated bulbs let us know what you think of them also put up some comparison pics

Old 07 August 2017, 11:44 AM
  #23  
NOSSY_89
Scooby Regular
 
NOSSY_89's Avatar
 
Join Date: Oct 2011
Location: Birmingham
Posts: 2,910
Received 447 Likes on 371 Posts
Default

Thanks mate it does seem the uprated bulbs have made some sort of a difference

Not sure if its worth getting a sticky topic going but then are there any admins here lol

Last edited by NOSSY_89; 07 August 2017 at 11:45 AM.
Old 07 August 2017, 01:42 PM
  #24  
jaygsi
Scooby Regular
iTrader: (46)
 
jaygsi's Avatar
 
Join Date: Apr 2007
Location: uk
Posts: 14,530
Received 256 Likes on 222 Posts
Default

I will fit both bulbs in and do another test. Then I might get those other bulbs if can find a discount code. Not really worth being a sticky. Not that there's a choice
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
scoobelan
Lighting and Other Electrical
4
27 February 2009 04:54 PM



Quick Reply: H4 LED Headlights



All times are GMT +1. The time now is 08:54 PM.