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One of these?

Dual filament 55W lamp, same wattage as OE, claims to be a much brighter H7 lamp. Is helpful to have a lux meter and a 12V power supply to compare the light output current and voltage with the original to learn if its both operational and is actually putting out more light than the OEM. Just looking at the filaments doesn't tell if they are good, also interconnections in these things.

Like to do this before replacing any bulb, saves the work of installing a bad bulb. Also have a fuse and a relay in the under hood fuse/relay box, under the cover tells you where they are located.

Also claim professional installation may be required if you can find a certified light bulb installer.
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