1987 Buick LeSabre Diode Dynamics SL1 LED 9006 Low Beam Bulbs

Features: Low or high beam LED headlight replacement. Correct optical focus for increased output with no added glare. Perfect 9006 fitment, no modification needed. Designed and validated to OEM lighting standards. Engineered and Assembled in USA.

Aftermarket or OEM?: If you're looking to improve visibility on your vehicle at night, you've probably found many options for LED upgrades. Most bulbs on the market are too big to install, don't work with the electrical system, and have no focus or hotspot in the beam pattern. Even if they come close on those aspects, they still aren't anything close to the quality you would find with factory-installed lighting. Like most aftermarket products, most LED bulbs are not engineered and tested for long-term reliability.

With the SL1 LED: Diode Dynamics set out to engineer a true OEM-grade solution. With its compact size, optically correct output, flow-simulated cooling, and boost-mode electrical circuit, our SL1 LED patented design is a properly-engineered solution that finally provides a true upgrade in performance, with high reliability: and it's tested and validated to meet those standards, just like OEM lighting.

Compact Size: Your order includes two bulbs, to replace the factory bulbs in your vehicle. The bulbs are compact in size, in a patented design that isn't much bigger than the original halogen bulb. The drivers are compact too! If you have a sealed headlamp, they are designed to fit inside. The drivers and bulbs are tested to last over time, even when sealed inside with the heat of the headlamp. Please note that if you are replacing a high beam / DRL bulb, the DRL function may no longer work, depending on your vehicle.

Street Legal Output: Don't be fooled by high lumen numbers or "projector specific" bulbs. Your vehicle's headlights are designed as a system, to focus light. If the light source in that system 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, you'll just have more glare. To correct this, the SL1 LED headlight bulb was engineered with advanced optical design software, which simulates each ray of light in a process known as "ray tracing." Using this tool, our engineers perfectly matched the filament location, allowing the SL1 LED to focus light just like your original bulb, preserving the focus and hotspot, with no added glare. It produces a functional pattern on the road, with a stronger hotspot for added distance. This is a safe, functional output, in compliance with photometric standards, which we call Street Legal.

Daytime Running Light: Daytime Running Lights (DRLs) are lights that illuminate when the vehicle is running, and when all other lights are turned off. Some vehicles use the high beam bulb as the daytime running light. If your vehicle uses voltage drop for the DRL signal, the SL1 will operate at full brightness. If your vehicle uses PWM for the DRL signal, the SL1 will operate at a reduced brightness level just like your factory halogen bulb would.

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, there is 30-70% more light in the critical hotspot, with no added glare or spread of light. With proper 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 big fans that just make noise. These bulbs still run hot, pushing the LEDs past their limits, 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, it comes together as a whole system that was extensively tested, with dozens of iterations to achieve the best cooling performance possible. It includes a direct-solder copper core board, thermal phase-change interface material, and thermally-modeled zinc casting get heat to the base, where base fins are 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 patented 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 an exclusive reinforced shroud to keep the heat off any other components or wiring. Only slightly larger than a standard halogen bulb, it fits behind dust caps and in tight spaces. The driver and bulb are tested to function when sealed inside the headlamp - no worries about heat buildup! The base sizes on the bulb are also are keyed for exact applications, not one-size-fits-all, and the compact driver easily tucks away.

Driven: Rather than a simple buck regulator found on other bulbs, the SL1 uses a unique boost-mode circuit, which prevents thermal imbalance in the LEDs over time - again, just like you would find in OEM LEDs. It also has transient protection for long life in automotive circuits. Diode Dynamics engineers also analyzed dozens of OEM electrical systems, and added current-monitoring circuitry to mimic the electrical characteristic of halogen bulbs, drastically reducing the need for CAN-BUS adapters (though they're still needed on some applications).

Reliability: Every part of the SL1 LED was designed for reliability, from the custom wiring with strain reliefs and solderless terminals, to the exclusive zinc castings, to the reinforced high-temperature PP-GF plastics (the same used in halogen bulb bases). Each component was designed and tested, with dozens of variations of each component reviewed until we achieved the maximum performance possible. Finally, the SL1 was put through its paces in our environmental testing chambers - where the bulb successfully performed through dozens of thermal cycles, from -40 through 85 degrees Celsius (-40 to 185F). Whether you're in the Sahara or northern Canada, the SL1 will keep performing for years, and is backed by a three year warranty.

Made in the USA: If you're a lighting enthusiast who only buys American; Diode Dynamics is a clear winner in that category. One of very few brands in the automotive lighting industry who designs, engineers, and proudly produces their products right here in St. Louis, MO. We've sold their products for many years and are confident you won't be let down in the performance or quality departments. There's no better place to buy Diode Dynamics lighting upgrades for your car or truck.

Shipping - All products purchased from Performance Automotive Lighting are giving a tracking number once the order has shipped and are insured through the carrier, included within total shipping costs. All orders are fulfilled within 1-3 business days of being placed, however this may be extended during peak seasons or holidays. Some products purchased from our store may require additional manufacturing lead time, which will receive additional communication regarding expected fulfillment.

Occasionally parts ordered through our site are shipped directly from the manufacturer, which may result in multiple packages arriving for a single order. In this case, tracking numbers for each package will be provided once orders are fulfilled.

Lost Packages – if tracking information shows that the package has been delivered and you have not received your package, you must notify the carrier immediately and notify us within 21 days of the marked delivery date so we can work with the carrier on recovering the package. Please note that this is generally the policy of the carrier and that credit is not always issues by the carrier until the process is complete. Unless insurance is selected at checkout, replacement parts or refunds will not be processed until the carrier approves the claim.

Product Returns - Performance Automotive Lighting is not responsible for return postage unless the return is required due to our mistake, in which case a pre-paid label will be provided. Due to the nature of many of the products sold on our site, we do not accept returns or exchanges on custom parts, un-sealed HID bulbs, used/installed products, or items purchased from our clearance section. Select returns are subject to restocking fees, outlined below.

Perfect condition (Unopened & like-new) = 90% refund or 100% store credit.

Re-conditioned (Packaging opened or damaged) = 80% refund or 90% store credit.

Inability to restock (Product & packaging both damaged) = 70% refund or 80% store credit.

Refunds

If you return an item for a refund, it must first meet the criteria stated in our above returns policy. All returns must be received at Performance Automotive Lighting within 45 days from their original purchase date. All refunds must be issued back to the original payment source. After 45 days from the original purchase date but within 90 days, we can submit refunds only by store credit or check. After 90 days, we can only provide refunds as store credit. If an order is placed using store credit; and that order requires a refund, the store credit will be re-applied to your account. This policy shall apply to any product purchases or deposits. 

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. 

Gift card is a non-returnable item.

To complete your return, we require a receipt or proof of purchase. 
Please do not send your purchase back to the manufacturer. 

Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund. 

If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days. Original shipping costs are not refundable.

Custom Build Cancellations - Orders that are requested to be cancelled before the build is complete are subject to a 25% cancellation fee, based on the total of the build  This fee is used to compensate for parts that are ordered for the build and time/labor spent on the project prior to cancellation. If an order is cancelled and the build has been started, customer is responsible for paying the 25% cancellation fee as well as for the work has been done determined by Performance Automotive Lighting

Exchanges – We are happy to exchange parts that are in like-new condition with original packaging, as long as exchanges are made within 60 days of the original purchase date. If you wish to exchange a product that is not in like-new condition, we reserve the right to deny an exchange or provide partial store credit towards your new items. product.