1.Quartz glass 2.E4 E-MARK Certification Approved 3.80% Krypton ... the Product l This is H1 12v 55w clear halogen lamp, we also have Rainbow blue, Clear, Yellow, Rainbow yellow, ... Quartz,CorningLife time:Qualilty A>=500 hrsQuality B>=350 hrsColor:clear, blue, rainbow and yellow, etc.E-Mark certified:H1,H4,H7 Auto Halogen ... for us. Welcome to contact with us! quartz glass halogen bulb h1 clear e4 12v 55w