Smart Automatic LED DRL Controller Relay Harness (12V 18W)
Automate your vehicle's daytime running lights with the Smart Automatic LED DRL Controller Relay Harness. Featuring voltage-sensing intelligence, this plug-and-play module turns on your DRLs when the engine starts (>13V) and provides a 28-second delayed pathway shutoff after engine shutdown.
Voltage-Sensing Logic & Optional Night Dimming
Connecting directly across your 12V battery terminals, this relay senses the voltage rise from the vehicle's alternator. An optional yellow trigger lead can be wired to your headlight positive terminal to dim DRL brightness by 50% for glare-free nighttime driving.
Key Features
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Intelligent Voltage-Sensing Relay: Turns on DRLs automatically when battery voltage exceeds 13V during engine operation.
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28-Second Pathway Delay: Keeps DRLs illuminated for ~28 seconds after engine shutoff to light your pathway.
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Optional Headlight Dimming Wire: Dims DRL brightness by 50% when headlights are turned on.
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Inline Safety Fuse: Built-in water-resistant fuse holder protects vehicle electronics against shorts.