Compare OEM & Sylvania Silverstar Ultras
#41
Senior Member
While 325 hours doesn't sound like much, the 9007 SilverStars on my Lightning were only rated 250 hours, but I don't remember replacing them in 40,000 miles (over 3.5 years). Sounds like these H13/9008 bulbs burn out faster even though they are rated for more hours? Wonder if it has to do with heat dissipation or housing design...