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  All Light. Zero Glare. How a Clean Cutoff Keeps LED Headlights Bright Without Blinding

  Bright doesn't have to mean blinding. A projector's razor-clean cutoff puts the light on the road, not in oncoming eyes — and every RIGNOX headligh...

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  18 Extra Feet to Stop: Why LED Brake Lights Reach Full Brightness Sooner

  LED brake lights reach full brightness 200 ms sooner than halogen — about 18 extra feet of reaction room at 60 mph. Here's the math, and why it mat...

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  No DRL Plug on Your Vehicle? How to Find Switched Power for Your Headlight DRL

  Older vehicles that never had daytime running lights have no factory plug for the DRL on new headlights, so the DRL power lead has to be connected ...

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  Is This Normal? How LED Headlights and Tail Lights Behave After Install

  Sharp cutoff, DRL turning amber during a signal, fog that clears, beam height set by screws instead of the dash dial: the behaviors that look like ...

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  Smoked or Clear, Red or White: Choosing Tail Light Options for Your Build

  The option menu is short, but the right combination depends on the truck it's going on. From a year of pairing lenses and light bars with hundreds ...

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  How to Aim LED Projector Headlights After Install

  Aim is the install step most owners skip, and on a projector it is the one that matters most. Where the adjusters are on a RIGNOX housing, the 25-f...

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  Aftermarket Headlights: Which Factory Features Carry Over, and Which Don't

  Auto high beam, auto headlights and DRL logic carry over to an aftermarket headlight. Matrix/ADB and swiveling AFS do not, and leveling stays: powe...

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  Dual, Triple, or Quad Projector Headlights: What the Number Actually Changes

  Compare Single, Dual, Triple and Quad projector layouts by beam coverage, low/high-beam roles and front-end style. Find the combination that suits ...

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  LED Hyperflash, Flicker, and Bulb-Out Warnings: How to Diagnose and Fix Each One

  Fast-blinking turn signals, a bulb-out message, or a shimmering DRL after install? Each one has a different cause and a quick fix. Find your sympto...

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  Headlight Condensation: Normal Fog or a Real Leak?

  Every headlight and tail light is vented on purpose, so a thin mist inside the lens is normal and clears on its own. Here is the rule automakers gi...

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  Are Smoked Tail Lights Legal? What Every State Actually Requires

  A RIGNOX smoked tail light is a complete DOT/SAE-marked assembly, built to put out bright red light through its own lens. Here is what every state ...

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  DOT Approved LED Headlights: What the Marking Actually Means

  RIGNOX headlights are tested as complete assemblies against FMVSS 108. Here is what stands behind the marking, what "DOT approved" really means, ho...