Exactly what does H1, H3, H4, H7 etc specs of light bulbs suggest?

Exactly what does H1, H3, H4, H7 etc specs of light bulbs suggest?

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Just what does H1, H3, H4, H7 etc specs of light light bulbs mean?

That will be better?

6th 2008, 13:09 #1 june
The following BHPian Thanks vishnuvijay for this of good use post:
6th June 2008, 13:17 # 2
Listed here 4 BHPians Thank Akshay1234 with this of good use post:

Than you akshay, which was quick.

You suggest h4 includes a primary light bulb and additionally a pilot bulb along side it?

6th June 2008, 13:24 number 3

Than you akshay, which was quick.

You suggest h4 includes a primary light bulb and additionally a pilot bulb along side it?

6th June 2008, 13:24 # 4
The next 4 BHPians Thank Akshay1234 with this of good use post:

Then what exactly is a bulb along side a pilot light bulb called?

Will blue light enhance lighting during the night?

6th 2008, 13:27 #5 june
6th June 2008, 13:30 number 6
6th 2008, 13:32 #7 june
The next BHPian Thanks Akshay1234 with this of good use post:
6th 2008, 13:33 #8 june

They truly are several types of light bulbs:

Continue reading “Exactly what does H1, H3, H4, H7 etc specs of light bulbs suggest?”

6th 2008, 13:33 #9 june