Diode Dynamics H11 SL1 LED Headlights for 2015-2018 Ford F-150 Authorized Dealer



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Diode Dynamics H11 SL1 LED Headlights for 2015-2018 Ford F-150 Authorized Dealer


This listing is for a pair of Diode Dynamics H11 SL1 LED Headlights. All Diode Dynamics products have a 3 Year Warranty as long as they are purchased from an authorized Dealer. We are an authorized Dealer.

SL1 LED Headlight. If you’re looking to improve your visibility at night, you’ve probably seen many options available for LED upgrades. There’s plenty of LED bulbs on the market, but they all have their shortcomings. They’re too big to install, have no hotspot in the beam pattern, or they simply stop working after just a few months. With its compact size, optically correct output, thermally-modeled cooling, and boost-mode electrical circuit, the SL1 LED finally provides a true upgrade in performance.

Street Legal Output. Don’t be fooled by high lumen numbers or “projector specific” bulbs. Your car’s headlights are designed to focus light. If the light source is out of focus, it doesn’t matter how bright it is – you won’t have a focused hotspot of light to shine down the road – just more glare. To correct this, the SL1 LED headlight bulb was engineered with advanced optical design software, to perfectly match filament location. This allows the SL1 LED to focus light just like an original bulb, preserving the focus and hotspot, with no added glare. It produces a functional beam pattern on the road, in compliance with photometric standards, for a safe, functional output, which we call Street Legal.

Tested to Perform. We test the SL1 bulb in factory headlamps, and measure the entire beam pattern using specialized equipment. It’s an elaborate affair: a headlight is mounted to a computer-controlled rotating head called a goniometer. Light shines down a tunnel, where a sensor collects data as the headlight is rotated. The entire beam pattern is mapped, and we compare the total output to the original halogen, confirming that the SL1 bulb shines more light in the hotspot, without adding extra glare on the road. The test results speak for themselves: in most lamps, like the 2015 F-150 Halogen lamp below, there is 30-70% more light in the critical hotspot, with no added glare or spread of light. With optical engineering, testing, and validation in the application, we can assure correct optical performance..

Staying Cool. You may have seen bulbs that use large straps for cooling, or fans that just make noise. These bulbs run hot, resulting in degradation of output after a few months. When it comes to cooling, proper engineering is required to efficiently remove heat from the bulb. In the SL1, a copper core board, thermal phase-change material, and thermally-modeled zinc casting get heat to the base, where base fins release it, designed for aerodynamic performance in conjunction with the flow rate and pressure of the Sunon bearingless microfan. The result is a highly-effective and reliable cooling system, keeping the bulb running at maximum potential.

Fitment. With its patent-pending design, the SL1 LED fits where other bulbs won’t, without cutting or modification. There’s no hanging metal straps, just a compact bulb that plugs right in, with a nylon-reinforced shroud. Only slightly larger than a standard halogen bulb, it fits behind dust caps and in tight spaces. The base sizes are keyed for exact applications, not one-size-fits-all, and the compact driver easily tucks away.

Reliability. Every part of the SL1 LED was designed for reliability, from the high-temperature teflon wire, to the zinc castings, to the reinforced plastics. The compact driver uses a unique boost-mode circuit, which prevents thermal imbalance in the LEDs, and has transient protection for long life in automotive circuits. Finally, the SL1 bulb was put through its paces in our environmental testing chambers – where the bulb successfully performed through dozens of thermal cycles, from -40 through 150 degrees Celsius. The SL1 will keep performing for years, and is backed by a three year warranty.

Experience.  After over a decade in business, Diode Dynamics is the most trusted name in automotive LED lighting. Unlike every other LED distributor, we manufacture and engineer products ourselves in the United States, for high quality and fast time-to-market of the newest and brightest LED technologies. We pride ourselves in offering only quality LED products, that will exceed your expectations. Please contact us if you’d like to discuss your lighting project!


Measured Lumens: 1630 (per bulb)

Color Temp (CCT): 5700K

Power (watts): 20.2

Operating Voltage: 5-16V

Current (amps @ 13.2V): 1.58

Polarity: Polarity Specific

LED Emitter: Luxeon Z ES

Connector(s): OEM-Size Plug and Play

Driver Features: External, Waterproof, Constant Current

Materials: Copper PCB, PP-TD30 Base, Zinc Heatsink

Cooling: Active, Mag-Lev Microfan

Compliance Ratings: FMVSS108 Beam Pattern, SAE J575 Durability Test

Weight (lb): 1.1875


Bulb Size: H11 

Application: Low Beam

Make: Ford

Model: F-150

Years: 2015,2016,2017,2018

What’s Included

Quantity: Two (2)

3 year warranty

Return Policy: 30-day Return with no restocking fee 100% Satisfaction Guarantee

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All items will ship out the same day if order is received by 2pm Central Standard Time. If order is received after 2pm the item will ship out the following day. We only ship items out Monday-Friday.

Payment is expected with 2 days of end of auction. We will ship product within 1 day of cleared payment.

We want you to be completely satisfied with your order. If you are not fully satisfied with your order, please contact us within 30 days of order delivery. You must notify us of DOA or damaged products within 3 days of delivery. Please message us through eBay, here, and we will issue you an appropriate Return Authorizations number (RMA) for your return. We will not accept any returns without RMA number issued by C.A.K. Electronics.

If your item arrived as described and you want to return it for any reason, we will issue a refund to your PayPal account for the original purchase price. If there were charges then the charges will NOT be refunded. You will be responsible for charges for all return shipments.

  • Please allow 1 week after receipt of returned item for processing refund.
  • RMA numbers must be clearly displayed on the front of the return- label. Please DO NOT put the number on the factory packaging.
  • We are not responsible for returns lost or damaged in shipment; we recommend that items be shipped back USPS Insured, UPS Insured or FedEx Insured.
  • Original charges are non-refundable unless the return is due to our error.
  • Item must be returned in its original condition with all original packaging or there will be a charge for missing Items

Any other questions feel free to contact us and we will be glad to assist you.

Should you encounter any difficulties or problems beyond the 30 Days, please refer to the MFG. Warranty.

This is for domestic (USA) returns only. International orders are final and this return policy does not apply.

We’re always glad to hear from our customers. If you have any questions about our company, the services we provide, or the products we offer, just let us know.

CAK Electronics

Please email us through eBay, here, and we will get back to your promptly!

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