Philips City Vision Moto H4 9003 Up to 40% Brighter Bulb Up to 40% Brighter than OEM H4 Bulbs (1500 Lumens) 12V 60W / 55W Vibration Resistant with double coil technology up to 15 G Philips moto lamps are made of high-quality quartz glass; UV-Quartz glass is better than hard glass and highly resistant to temperature extremes and vibrations; which eliminates the risk of explosion; Philips quartz-glass lamps (filament 2650 degree C and glass 800 degree C) are able to withstand severe thermal shock; With the capability for increased pressure inside the lamp; UV-quartz glass is able to produce a more powerful light (Pack of 1) Distinctive Orange Effect in the headlight