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Diode Dynamics HD LED Halos for GMC Sierra (2016–2018) replace the factory C-shaped DRL with much brighter, more uniform rings. These application-specific halos use high-density LED arrays with a diffusing phosphor coating and over 700 LED chips for a smooth, solid appearance. They include waterproof PWM drivers, input pigtails with T-taps, and wiring instructions; professional installation is recommended and a 3-year replacement warranty is provided.
Diode Dynamics GMC Sierra LED Halos Switchback 16-18 Sierra 1500
