BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Cosmetic and Lighting Modifications (exterior/interior) > H9 or H11 bulbs in H8 housing?

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      11-12-2014, 07:32 PM   #1
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H9 or H11 bulbs in H8 housing?

Pre-lci e92, our angel eyes are H8. However, H8 are only rated 35 watts with 800 luminous flux. H11 are 55 watts with 1350 luminous flux, and H9 are 65 watts 2100 luminous flux. Now, aside from the bases being ever so slightly different, is there any downside to upgrading to either an H11 or H9 bulb in my angel eyes instead of the factory H8? Has anyone done this?
'08 BSM E92 335i 6MT/KW V1s/matte black grills/blacked out side markers/complete LED interior kit/DCI/M-aero front lip/Alcantara shift boot/Clutch stop/ CDV delete/LED reverse lights
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      11-12-2014, 10:37 PM   #2
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The first downside I'd be worried about is the heat melting down the expensive headlights. Thats more almost double the wattage, probably way more heat than what it was designed for.
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      11-12-2014, 10:45 PM   #3
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I would Highly Not recommend doing that. you would be introductory so much more heat in there and you would most likely cause damage to the inside of the headlights. The chrome reflector for the angel eyes is a thin coating around a plastic housing, and the additional heat might start to deform the plastic or cause the chrome to peel. I'm not advocating for you to use any other angel eye bulb at all, just trying to make sure you don't ruin your headlight
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      11-13-2014, 12:56 PM   #4
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I would definitely be worried about heat as well. I've seen quite a handful of cars melt their fog light housing from using incorrect bulbs (not necessarily on this platform).
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