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Old 10th May 2008, 10:19   #1675 (permalink)
anupmathur
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Quote:
Originally Posted by hrman View Post
On the High and low beam being flashed simultaneously. I think if the wattage is 90/100, then you stand a chance of fusing the high beam. Not so in a 55/60.
Since the glass/gas in the bulb is tuned to receive not more than the high beam (100), when you flash both, it causes the wattage to reach 100+90=190. Sustained wattage at 190 will cause the bulb to fuse.
Sounds good hrman, but I find it difficult to believe that high & low beams can be turned on simultaneously, even if using the stalk to flash.
I would expect that the low beam would be cut-off when flashing.
And if there are cars where both can be turned on together, even momentarily, it would be fair to expect that bulb makers enable/design their bulbs to withstand that condition.

Can someone please throw more light on this (high beam preferred!)?
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