Xenon HID D4C D4S Headlights Light Bulbs Light Blue 10000K for 06-10 Lexus IS250 IS350 (W/Stock HID) One Brand New PAIR (Set of 2) of D4C/D4R/D4S Xenon Blue HID Replacement Light Bulbs (10000K) 10000K Color Temperature (Light Blue) 35W These two light bulbs are for Low beam headlamp. 5 Times Longer Life Span than Conventional Light Bulbs. Life-Expectancy: 10000 hours Direct upgrade replacement of OEM HID Light Bulbs. Easy Installation (Just plug in and replace stock light bulbs) No Need to Change Any Wire!! No Modification needed!!