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Old 6th June 2008, 13:52   #16
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Quote:
Originally Posted by vishnuvijay View Post
can guys tell me which type of bulbs (H1, H4 etc) fits

1. OHC
2. Wagon R

?

H4 will fit both the cars.

And yes, phillips blue vision and crystal vision come with a set of pilot lamps.

H4 has 2 filaments meant for highbeam and low beam.

Last edited by badboyscad : 6th June 2008 at 13:57.
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Old 6th June 2008, 13:58   #17
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Quote:
Originally Posted by badboyscad View Post
H4 will fit both the cars.

And yes, phillips blue vision comes with pilot lamps.

H4 has 2 filaments meant for highbeam and low beam.

brilliant. thank you.

any opinions about blue vision? will a tint of blue in light improve night visibility?
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Old 6th June 2008, 14:20   #18
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Quote:
Originally Posted by vishnuvijay View Post
brilliant. thank you.

any opinions about blue vision? will a tint of blue in light improve night visibility?
If you want a genuine HID like appearance, i would strongly recommend you to go for Phillips Diamond vision bulbs.

Phillips blue vision - around Rs:700
Crystal vision - around Rs1000
Diamond vision- around Rs 1200.

Last edited by badboyscad : 6th June 2008 at 14:22.
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Old 6th June 2008, 14:50   #19
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Quote:
Originally Posted by vishnuvijay View Post
brilliant. thank you.

any opinions about blue vision? will a tint of blue in light improve night visibility?
I think its all cock and bull spread by these Bulb makers.
Just another marketing gimmick.

The Bluish white light is there only for the "cool look" factor - by making it look like Xenons.

Our eyes anyway are pretty insensitive to blue spectrum.
Yellow and green - those are two colors that our eyes are most sensitive to.

If you want better visibility at night - get lamps that make more of green and yellows, not more of blues.


For ppl who have feel that Bluish lights actually improve night vision - there is one word for it - placebo.
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Old 6th June 2008, 15:13   #20
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Quote:
Originally Posted by vishnuvijay View Post
brilliant. thank you.

any opinions about blue vision? will a tint of blue in light improve night visibility?
No it will do the opposite on the contrary. If you're buying a halogen bulb for best visibility buy a bulb which has a color temperature less that 5000K. (Yes i am talking about halogen bulbs here and not HID). Lights with blue tint might look brighter will not give you usable light.
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Old 6th June 2008, 15:19   #21
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I agree H4 has 2 filaments..not one. NO bulb has a moving reflector in the H series
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Old 6th June 2008, 21:43   #22
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hi sankar, so will white lights give more visibility at night ? i want something which can be usefull at the highways, meaning long spread of light.
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Old 6th June 2008, 22:11   #23
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Why are there so many types when all have same ratings??
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Old 6th June 2008, 22:26   #24
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Quote:
Originally Posted by S600BENZ View Post
No thats not true. It has only 1 filament, but has something like a reflector built into the bulb which moves when you shift the stalk in the car and thus changes the focus from High Beam to Low Beam.

Bro, i think you are confusing with the HID and halogen bulbs!!

These days HID's do came with the solenoids to move the bulb up and down so it looks like a low/high reflection,this is because if we use different filaments in HID for high/low then we need 4 ballasts because HID's need high power to glow(if you know if you on/off HID without attaining the temperature then it will blow bulbs and ballasts)
where normal halogen bulbs doesn't need that high temperature to start off!!!
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Old 6th June 2008, 22:35   #25
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Quote:
Originally Posted by badboyscad View Post
If you want a genuine HID like appearance, i would strongly recommend you to go for Phillips Diamond vision bulbs.

Phillips blue vision - around Rs:700
Crystal vision - around Rs1000
Diamond vision- around Rs 1200.
can you tell me where are they available in delhi



Quote:
Originally Posted by vishnuvijay View Post
hi sankar, so will white lights give more visibility at night ? i want something which can be usefull at the highways, meaning long spread of light.
want a answere of this also
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Old 6th June 2008, 22:48   #26
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Quote:
Originally Posted by vishnuvijay View Post
hi sankar, so will white lights give more visibility at night ? i want something which can be usefull at the highways, meaning long spread of light.
IMO white lights will give more visibility when there is no other like like streetlamps around since when there are other sources the white light tends to diffuse with then.

ask this question in the auto lighting thread and youll get your answer.
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Old 6th June 2008, 23:11   #27
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Quote:
Originally Posted by vishnuvijay View Post
hi sankar, so will white lights give more visibility at night ? i want something which can be usefull at the highways, meaning long spread of light.
Pure white light is not really effective on the highways. Opt for lights with a hint of yellow, completely avoid those bluish white and extreme white types.

Check out the lighting thread for more details and reviews.

http://www.team-bhp.com/forum/modifi...ting-here.html
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Old 6th June 2008, 23:17   #28
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H4 is a dual filament, and has a metal cup like thing in the bulb over the low beam filament. When its on low beam, one filament lights up, when its on high beam the other does - and when you "flash" both filaments light up.

For great info on automotive lighting bulbs, see this page! >>
Daniel Stern Lighting Consultancy and Supply

cya
R
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Old 12th July 2008, 15:49   #29
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H3 bulbs come for Spotlights. For eg: Hella comet 500 comes with H3 bulbs . I fitted one with Philips H3 100W bulbs.
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Old 29th April 2009, 17:50   #30
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ARAI's documentation is pretty detailed on this (and interesting too). I am attaching a file which outlines the requirements for various catagories of auto lamps (not just headlamps. It contains info such as (but not limited to) this:
Attached Thumbnails
What does H1, H3, H4, H7 etc specifications of bulbs mean?-untitled.jpg  

Attached Files
File Type: pdf 9~2~2008~12~39~18~PMAIS-034 and Amd 1and 2.pdf (1.78 MB, 2620 views)
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