The Night Tech line of high output replacement bulbs from PIAA features several advancements in performance, durability and manufacturing. Through the use of a unique mix of gasses including a higher proportion of inert gases as well as a new filament material these bulbs offer up to 90% more light than a conventional bulb with a greater life span. The gases, filament material and dual band coatings on the bulb offer a color temperature in the 3600 Kelvin range for a whiter and brighter light. It also has a longer range (up to 35 meters) output when compared to other replacement bulbs and still retains SAE/DOT compliance.Specifications: Color White Industry/OE Number 9003 Industry/OE Number H4 Industry/OE Number HB2 Description_DES H4/9003/HB2 Night-Tech Replacement Bulb Description_EXT H4/9003/HB2 Night-Tech Replacement Bulb; 3600K; 60/55W=110/100W; 9003/HB2; Twin Pack; Description_FAB Crafted w/The Highest Quality Quartz Glass And Alloy Filament Description_FAB Improved Performance And Durability Description_FAB Utilizes PIAAs Xtra Technology Description_FAB Enhanced Light Output w/Stock Power Draw Description_FAB Enhances Output Of Stock Or Aftermarket Lights Description_FAB White 3600K Color Tone Description_FAB Enhances Color Recognition/Contrast And Depth Perception Description_FAB Extended Lifespan Description_MKT The Night Tech line of high output replacement bulbs from PIAA features several advancements in performance, durability and manufacturing. Through the use of a unique mix of gasses including a higher proportion of inert gases as well as a new filament material these bulbs offer up to 90% more light than a conventional bulb with a greater life span. The gases, filament material and dual band coatings on the bulb offer a color temperature in the 3600 Kelvin range for a whiter and brighter light. It also has a longer range (up to 35 meters) output when compared to other replacement bulbs and still retains SAE/DOT compliance. Description_SHO Bulb