Been looking over the Sylvania website for info on life expetency etc. and heres what I found:
2. What is the life expectancy of SilverStar?
The life expectancy of a SilverStar halogen light source is dependent on the driver’s use of the lights, which vary by season, time of day and number of miles driven. We estimate the SilverStar halogen lights to have a life span of up to one year under average driving conditions.
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