EVRBUL Upgraded Light Control Module Fit for Chevy Silverado GMC — Open-Box, 18% Off

【Wide Compatibility】: Fits all GMT 800 trucks including Cadillac Escalade, Chevy Tahoe, GMC Yukon (2004-2006); GMC Sierra 3500, Cadillac Escalade EXT, Chevrolet Avalanche 1500/2500, Silverado 3500 (2003-2006); Silverado 1500/2500 HD, GMC Sierra 1500/2500 HD (2003-2007); Silverado 2500, Sierra 2500 (2003-2004); Silverado/Sierra 1500 HD (2003 & 2005-2006); Silverado Sierra 1500 2500 3500 HD Classic (2007)

【Low/Fog/DRL Stay On With High Beams】: This module overrides the factory circuit logic that shuts off low beams, fog lights and daytime running lights when high beams engage. All four lighting groups stay illuminated together for enhanced visibility during off-road night driving, heavy fog, and torrential rain. Off-road use only; do not operate fog lights with high beams on public roads.

【Upgraded Double-Sided High-Tg FR-4 PCB】: Our 8 High Mod module utilizes premium double-sided FR-4 circuit boards. Unlike low-cost single-sided PCBs, this dual-layer design delivers precise signal transmission, steady current output and superior heat resistance, for consistent, reliable lighting performance.

【Optimized H-Shaped Elastic 4-Pin Pads】: We reworked the four original solder pads into integrated elastic H-type contacts. Unlike flat standard pads, this H-shape offers mild elasticity to grip relay pins tightly amid engine vibration and extreme temperature shifts. It prevents loose connections, light flicker and intermittent faults, while the larger contact area ensures steady current flow and reliable lighting performance under harsh engine bay conditions.

【Plug & Play Direct Replacement】: This module perfectly matches the original relay socket of your vehicle’s under-hood fuse box. Simply pull out the factory headlight relay and plug in our unit directly. No wire cutting, splicing or complicated wiring work needed; fully reversible for easy restoration to factory stock setup before vehicle inspection.

【Extended Expansion Function】: This module supports extra auxiliary lighting upgrades. You can link the included diode harness to the PCB expansion pins to power aftermarket lights like grille lights, off-road spotlights and other auxiliary lamps, activating them together with your high beams.

【Package Includes】: 1× H-L-F-D Circuit Board,1× Diode Harness,2× Quick Splices,1× Installation Guide

【Wide Compatibility】: Fits all GMT 800 trucks including Cadillac Escalade, Chevy Tahoe, GMC Yukon (2004-2006); GMC Sierra 3500, Cadillac Escalade EXT, Chevrolet Avalanche 1500/2500, Silverado 3500 (2003-2006); Silverado 1500/2500 HD, GMC Sierra 1500/2500 HD (2003-2007); Silverado 2500, Sierra 2500 (2003-2004); Silverado/Sierra 1500 HD (2003 & 2005-2006); Silverado Sierra 1500 2500 3500 HD Classic (2007)