Description:1. Quality quartz glass lampshadeand nique coating technology, good resistance to high temperature & heat shock, enhance color temperature.2. High performance filament, Good light profile, accurate filament positioning, high luminous intensity.3. No deformation & long service life.4. Quality socket, clear Watt mark. Specification: Brand BLICKName T4W T8.5 Replacement Halogen Bulbs Watt 4WSocket Type WB Working Voltage 12 V Filament Tungsten wire Material Copper + Quartz glass+ Tungsten wire Lampshade form Quartz glass Package Included:1x BLICK T4W T8.5 12V 4W BA9S Car Replacement Halogen Bulbs Front marker Indicator Light Width Lamp