[Fit for Chevy Silverado 1500 2500HD 3500HD]:This bulb combination is suitable for Silverado 1500 2007-2015 / Silverado 2500HD 3500HD 2007-2021.The package includes:2 high beams 2 low beams and 2 fog light bulbs,totaling 6 bulbs, ensuring a fit and easy installation.Please check the Silverado 1500 2500HD 3500HD model before purchasing [New Version, Enhanced Visibility, Safer]: New chip, 35000LM, 6500K cold white light, visibility enhanced by 700% compared to industry standards, IP68 sealed design, free use in extreme weather conditions, reduced redundant circuit design and automatic fault switching, improving system reliability and ensuring your driving safety [Energy saving, heat dissipation, and durability]: Our automotive light sources save 80% of energy. Meanwhile, our bulbs feature an integrated all-aviation aluminum 7-series alloy housing, a dual-channel heat conduction structure, a 120% increase in heat dissipation compared to other designs, and a super-quiet fan at 12,000 revolutions per minute, ensuring a lifespan extended to 50,000 hours. Approximately 5.7 years (calculated based on a daily usage of 6 hours) [Easy to Install] The VIONTREX bulb is equipped with an intelligent IC controller, which achieves compatibility with 98% of vehicle interfaces through standardized circuit protocols, effectively avoiding the risks of CAN bus communication failures and false triggering of the lighting module.They are compatible with sockets, and the entire installation process takes 5 to 8 minutes, saving installation time [Fashionable Appearance]: In addition to its excellent performance, the car light adopt a standard fluid mechanics design.Through a 25-step curved surface smoothing process and 3D parametric modeling technology, the light pattern distribution and the body shape achieve a millimeter-level fit.At the same time, through the eye comfort test, a breakthrough was achieved in reducing the visual fatigue index by 42% Product Name:VIONTREX Driving Lights and Fog Lights Combo Fitment:Fit For Silverado 1500 2500HD 3500HD(2007-2019) Package Included:2 high beams 2 low beams and 2 fog light bulbs Function:Improve visibility, expand the illuminated area, IP68 sealed design, in fog, rain, snow,dust and other bad weather conditions, can also perform well in low visibility conditions,and enhance the safety of night driving. Material:Integrated all-aviation aluminum 7 series alloy housing Technical Parameter:60W per pair, 35000LM 6500K cool white, 700% enhanced visibility than other bulbs,1,4000RPM turbo fan provide super cooling ability Lifespan: Approximately 5.7 years (calculated based on a daily usage of 6 hours）