bulb sizes (h1, h7, h4, etc) vs. amount of light

[spyghost]

hi,

is there a difference in the amount of light that each of these emit given the same wattage? let's say, which would offer better visibility? a 100w h1 or the high 100w of h4? kung baga, do the bulb sizes matter?

another scenario, which would give a better view among the following. take note walang fog lamps, its only headlights

for low (80w), which is better h7 or h4?
- h7 low against h4 low

for high (100w), which is better h7 + h1 or h4 only?
- h7 high + h1 high against h4 high

pasensya na kung nakakalito ang tanong

[1D4LV]

nakakalito nga bro.
but basically, its not on the wattage itself.
for example: an 80w osram NB emits more light than an 80w osram all weather.

on the H7 and H4, i think H7 has more filaments, therefore it emits more light.

not sure ha?

[spyghost]

yun... ano ang differences ng mga h h sa mga bulbs? any references?

as for the osram line, ano ang pinakamaliwanag?

[boybi]

The H1, H7, H4, etc. are bulb types. Each type have different wattages. e.g. an ordinary H4 bulb is 55W/60W, but you can buy 70W/80W, 100W/120W H4s.

[spyghost]

me kinalaman ba yung bulb size sa buga ng ilaw?