Freightliner FL70-FL80 LED Headlights

Frequently Asked Questions About Freightliner FL70-FL80 LED Headlights

Will these LED headlights fit my specific FL70 or FL80 model year?

Our LED headlights are designed to fit Freightliner FL70 and FL80 models from 1996 to 2012. They use the standard 7x6 inch (5x7 inch) rectangular sealed beam pattern. However, we recommend verifying your truck's original headlight size before ordering, as some specialty configurations may vary. The mounting depth required is approximately 3.5 inches behind the headlight bucket.

Do I need any special wiring harnesses or adapters to install these LED headlights?

Most of our LED headlights are plug-and-play replacements that connect directly to your existing H4 connector. No cutting or splicing is required. However, some models may need an anti-flicker harness or load resistor to prevent dashboard warning lights or rapid flashing. We include these adapters with headlights that require them, and each product page specifies if additional components are needed.

How much brighter are LED headlights compared to my stock halogen bulbs?

Our LED headlights typically produce 4,000 to 6,000 lumens per light, which is approximately 200-300% brighter than standard halogen sealed beams. The focused beam pattern provides better road illumination without blinding oncoming traffic. Most drivers report significantly improved visibility at distances of 150-500 feet, especially in rural or unlit areas.

Are these LED headlights DOT approved and legal for street use?

Yes, all LED headlights we carry for the FL70-FL80 are DOT approved and SAE compliant for on-road use in all 50 states. Each light is stamped with DOT certification markings. They meet or exceed FMVSS 108 requirements for beam pattern, intensity, and cut-off line to ensure they won't blind other drivers when properly aimed.

What's the actual lifespan of these LED headlights, and what warranty coverage is included?

Our LED headlights are rated for 30,000 to 50,000 hours of operation, which typically translates to 10-15 years of normal commercial use. Most feature aluminum housings with built-in cooling fins to prevent overheating. Warranty coverage varies by manufacturer but generally ranges from 1 to 3 years against defects. The warranty covers LED failure but not physical damage from impacts or improper installation.