Ford Focus Forum, Ford Focus ST Forum - View Single Post - H9 vs. H11 Bulbs Information
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Old 06-28-2011, 02:14 PM   #9
Doug81
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Join Date: May 2011
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Quote:
Originally Posted by cappa View Post
those are regular "White color" and the email from Daniel Sterling states that H9's should not be used for the Fogs.

"Note that the H9 swap is not universal; it works well in projector-type low beams but is not safe in most reflector-type low beams or in fog lamps of any type.
I've e-mailed Daniel about how to tell if we can use an H9 in our reflector low beam. I'll post his response when I get it. I know that fogs just aren't big enough to accommodate the extra heat from the 10 extra watts.
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