New answers tagged headlight
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Headlights are generally acrylic plastic so solvents aren't a good idea as you rightly say. A smoky/foggy headlight can often be polished back to clear. There are purpose made plastic polishing compounds, they don't cost much and in my limited experience they work well. I've also heard that you can polish with a baking soda paste or toothpaste, of those 2 ...
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Yes, HID bulbs do not like excessive cycling, it causes damage to internal contacts as the arc is struck with high voltage. After striking and once a stable arc is formed, the voltage drops to around 40-80V. The bulb lifespan is still very long, even if you switch them multiple times per day.
HID bulbs do wear and burn out. Acceptable life span is between 5-...
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