SYLVANIA LED bulbs deliver a balanced combination of performance and value. Tuners and auto enthusiasts alike can replace their vehicle's incandescent lights with a bright and long-lasting LED bulb for a unique and modern look in a simple and cost effective way. Product Features:SYLVANIA LED bulbs are able to withstand road shock and vibration for optimal performanceHave thermal management to extend life and increase performanceAre full power instantly compared to incandescent bulbs' slower light-up - Every foot counts LED bulb fits and installs the same as your old bulbThis is a RED LED bulb - Ideal for stop and tail lightsSYLVANIA LED Load Resistor may be needed for tail and stop applications