2018-Alfa-Romeo-4C-Headlight-Bulb-High-Beam-and-Low-Beam(with-HID-headlights)-D5S HID 9004m The 51 LED bulb is

The 51 LED bulb is one of the most common used fitment

This 55W AC HID Ballast comes standard with our Solaris HID KIT

check the markings

Please note unless you upgrade to Bi-Xenon your high beam will be Halogen

2018-Alfa-Romeo-4C-Headlight-Bulb-High-Beam-and-Low-Beam(with-HID-headlights)-D5S HID 9004m The 51 LED bulb isD5S is a Direct Factory Replacement Bulb for your car that comes equipped with HID OEM (Original equipment manufacturer) Our D5S is a very low energy consumption bulb while being powered by 35W. 3,000K 4,300K 6,000K 8,000K 10,000K What's included One Pair of D5S, 2 bulbs Available in 5 different temperatures 6,000k being the brightest.