So i bought a new pair of HID headlights for my scion tc they have xenon bulbs and both the passenger and drivers side have burned out twice already in a little over a month. Does anyone know why they are burning out so quickly?

 

Are you touching the bulbs with your bare fingers or did you use gloves? The oils from your fingers in conjunction with the heat from the bulbs will be more likely to burn out quicker.

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They'll also burn out quicker if they're Ebay or Amazon brand. Not saying they are but IF that is the case then maybe try investing in a better brand. It'll save you in the long run.