If you have an old Ford high beam H1 with a single blade and plug on the headlight housing, it is not a bulb. To you. I made a request through the seller's website and am waiting for a reply with a solution. I will update the review when I hear from them. Update: The seller has confirmed that these bulbs will not replace older H1 bulbs. However, I found a solution. You will need to cut the ring of the new bulb to remove the electrical connector latch on the headlight housing. Then the pear sits correctly. Then you need to find or craft locks to keep the lightbulb in the case. I was lucky enough to receive a set from this seller in 2017 with my first set of LED lights, which ironically also had to be modified to fit.
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