How are high beams brighter than low beams if the same bulbs are used in each?

Question

Say you have a separate bulb for high and low beams in your car, and each bulb is a h1 6000k bulb. How is it that when the high beams are turned on, they produce more light than the low beams?

Answer 1

Because the high beam is directed forward and the low beam is tilted downward.

Answer 2

Some setups do actually produce more light, as more than one bulb will light up. The main difference though is that the "high" beams are aimed higher. You wouldn't want to use high beams all the time because the increased hight of the light beam blinds oncoming drivers.

Answer 3

In many cars both dip and main beam are on when the lights are switched to main eg Citroen, VW, Peugeot etc. So on main you get double the light output. In double filament bulbs the main filament is usually higher wattage eg 60/45. In addition the other contributors are right when they refer to reflector geometry.

Answer 4

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Answer 5

The way they are aimed? The angles on the reflective part behind the bulb? That's just a guess!

Answer 6

jeff,these bulbs are different.the high beam bulb is a double element bulb.

Answer 7

Mostlikely by the filament difference.

Answer 8

There are two filaments in one bulb.
one high, and one low.

Also, they are at different angles of projection.

Answer 9

lights