SYLVANIA - DE3021 31mm ZEVO LED Festoon White Bulb - Bright LED Bulb, Ideal for Interior Lighting - Map, Dome, Trunk, Cargo and License Plate (Contains 1 Bulb) LIGHTS DIM OVER TIME, REPLACE IN PAIRS: Your lights are a pair, one is never turned on without the other. If one bulb burns out, the other isn't far behind. Replace your DE3021 in pairs for optimum performance. DELIVERS A BRIGHTER, WHITER & SHARPER LIGHT: This is a 6000K WHITE LED bulb  Ideal for interior lighting  map, dome, trunk, cargo and license plate ACHIEVE FULL BRIGHTNESS INSTANTLY FOR INCREASED SAFETY: These DE3021 ZEVO LEDs light up instantly for increased performance compared to standard incandescent bulbs' slower light up speed. MAY REQUIRE A LOAD EQUALIZER FOR OPTIMUM PERFORMANCE: To help prevent hyper flashing, it is suggested that a load equalizer be installed. See Sylvania's Load Equalizer product. THE SYLVANIA STANDARD OF QUALITY: With 100+ years in business, Sylvania is the world leader in automotive lighting for Original Equipment Manufacturers (OEMs) and the aftermarket.