GMC Envoy / Premium LED Headlight package (2001 - 2009)

GMC Envoy / Premium LED Headlight package (2001 - 2009)

GMC Envoy / Kepler LED Headlight package (2001 - 2009)


Nothing on the market beats our Kepler Series LED Headlights for safe driving on dark mountain roads or distraction-filled suburban streets.  Our compact LED headlights exceed the performance of normal headlights, helping you see the road with ease.

2001 - 2009 GMC Envoy / Kepler Series LED Headlights Package Includes:

  • 1 Pair of Kepler 9006 LED Headlights

  • 2 Mounting Pads

  • 2 Zip Ties

  • Installation Guide

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Make a statement every time you drive at night by upgrading your factory headlights with a plug n play Kepler Series 9006 LED headlight replacement kit for your 2001 - 2009 GMC Envoy / by PrecisionLED. These headlights combine to cast a vivid, shoulder-to-shoulder array that reveals everything ahead of you without distracting oncoming drivers.

Why Buy PrecisionLED Headlights?

  • Premium look. LED lighting is noticeably different from standard lighting, giving your vehicle a premium look. You’ll get brighter, crisper lighting that makes driving at night safer and easier.
  • Top-of-the-line. LED headlight packages from PrecisionLED offer top-of-the-line performance and life expectancy
  • Superior Heat Dissipation. Our headlights use milled aluminum heat radiators with internally powered fans that dissipate heat quickly and evenly.
  • Easy to install. All of our LED headlight packages are easy to install with plug-n-play connectors. In fact, we have step-by-step instruction videos showing precisely how to install lights on popular models
  • Note: LED Headlights are compatible with all Low Beam, High Beam, Fog Light and Daytime Running Light (DRL) applications.

2001 - 2009 GMC Envoy / Kepler Series LED Headlights Package Includes:

  • 1 Pair of Kepler 9006 LED Headlights
  • Mounting Pads
  • 2 Zip Ties
  • Installation Guide

How Do We Test And Measure Our Products?

We are glad you asked! At PrecisionLED we spend a significant amount of time testing, measuring, and comparing the performance of our LED headlights with others to ensure we offer the highest quality product to our customers.


Oftentimes, marketers will list the total lumen(lm) output of an LED bulb with ever increasing numbers. 10,000 Lumens! 20,000 Lumens! This measurement is deceiving! While Lumens measures the total light generated by a bulb, Lux(lx) measures how much useable light reaches its intended destination. A poorly designed high lumen output bulb will not reflect light optimally out of a headlight housing, and will result in low lux output. Let’s observe how Lux is measured in our lab:

PrecisionLED SAE J575 Headlight Beam Pattern Diagram

Pictured above is a replica of the SAE J575 Headlight Beam Pattern Standard used for measurement by all OEM Manufacturers of automotive headlights. In total there are 15 unique points where light output is measured.

  • 1 to 3 – Measures High Beam light output: When measuring low beam light output, points 1 through 3 should be as close to 0 as possible, representing the amount of glare the oncoming driver might see
  • 4 to 5 – Measures driver side cutoff: There should be a steep drop off in light output from points 8,10, to points 4,5, indicating strong cutoff and low glare to oncoming drivers
  • 6 to 9 – Measures Center Light Output: This is typically the brightest concentration of light. Uniform light output means each point will be similar without too much variation
  • 10,12,14 – Measures light output left of center: Strong performance left of center means the bulb reflects light in a uniform pattern
  • 11,13,15 – Measures light output right of center: Strong performance right of center means the bulb reflects light in a uniform pattern.

Equipment And Metrics - Measure ALL THE THINGS!

We test and measure everything! Lux, temperature, voltage, wattage, amperage. It’s all important when evaluating the overall performance and quality of an LED.

To measure Lux output, we take readings with a LED Lux Meter at a standard distance of 12 feet. This is done at every single point (1 through 15) on the SAE J575 testing diagram.

To verify energy consumption, we record output voltage, amperage, and total watts. Too often we find that a 35W, or 50W LED exceeds its rated power consumption, meaning the bulb is using too much power, overdriving the LED at higher temperature leading to premature light degradation or end of life.

PrecisionLED Lux Meter

Temperature - It’s getting hot, are we there yet?

Almost. Temperature is also a major factor in LED performance and life span. LEDs do not like heat and typically the brighter the LED, the more heat it creates, potentially shortening the life span of the LED bulb. After 10 minutes of sustained output, we measure both the temperature of the LED Chip, and the hottest point on the heatsink. Halogen bulbs…. are very hot. The lower the temperature, the more efficient the light source is.

Product Distance Volts Amps Watts Dissipation Time Housing Temp Bulb Temp
Halogen 12ft 14.5 4.45 64.52 Ambient 600(s) 191 F 560F
Kepler Series 1 12ft 14 2.72 39.16 Fan 600(s) 119 F 114 F

Charts - OK Show Me Some Pictures Already!

When comparing the light output in Lux of a typical Halogen bulb and our Kepler Series LED bulb, there is no question what is better. The center of the beam (6, 7, 8, 9) on average double in lux output, and more impressively, left and right sides triple in lux output.

PrecisionLED Kepler vs Halogen Lux Graph

Let’s look at some comparison photos. For those that are visual skeptics, all photos were taken in the same light conditions with the same exact settings.

Canon T4i + 16-35mm IS L Lens at 30mm, ISO100, F-Stop 2.0 and 1/2000 exposure time

PrecisionLED Kepler vs Halogen Photo

Your Satisfaction Is Key

At Precision LED, we've worked to create a company that provides a better product with better service and support. This is what we promise you:

  • Free plastic tools with each interior lighting kit to reduce the likelihood of interior damage
  • A full library of how-to videos to assist you with installation of your new LEDs
  • Extensive research conducted on each vehicle package we sell to ensure fitment and function
  • Multiple shipping options and low shipping fees
  • Products that are individually tested before leaving the warehouse
  • Hassle-free warranty claims and returns/exchanges

Your satisfaction comes first. If you have questions, concerns, or require additional help with installation, feel free to contact our support team at (888) 963-7742 or

Our Products Are Guaranteed

Customer service isn't just what we do - it's who we are. We want you to be happy with your purchase. If, for any reason, you aren't satisfied with your Precision LED purchase, you have 30 days from the date of delivery to return it for a full refund.

Like you, we are consumers and we understand that your satisfaction comes first. At Precision LED, we proudly stand by our products, which is why we offer a limited lifetime warranty on all our LED bulbs.

Our LED bulbs are designed to last a lifetime without any manufacturing defects, but we understand that things happen. If you have purchased an LED lighting kit and you experience a defect, we will replace it provided that:

  1. You contact us at and open a support ticket
  2. Our support team reviews your issue and provides an RMA number
  3. If deemed necessary, you mail the defective product to us (we will provide the shipping label) for inspection unless we ask you to do otherwise. When you ship your return to us, be sure to include the following:
    1. The email address and full name you used when you made your order, or a copy of your original purchase receipt
    2. Your RMA or Support Ticket Number

If your product qualifies for warranty replacement, we will reimburse shipping costs and ship the replacement part to you free of charge.

About Our Lifetime Warranty

All Precision LED kits include a limited LIFETIME warranty. Please note:

  • Our lifetime warranty is limited to the original purchaser - it is nontransferable.
  • Our lifetime warranty does not cover defects due to negligence, unauthorized repair, disassembly, or any other unwarranted use or handling.
  • Our lifetime warranty is limited to one replacement only. For example, if you order a kit with 10 LED bulbs, the maximum number of replacements we can warranty is 10 LED bulbs.

Warranty Disclaimer

This warranty is in lieu of any other warranty, expressed or implied. It includes replacement of the failed component. It does not include installation labor, nor does it cover any consequential damages caused by loss of use of the vehicle or failure of the component. Precision LED's maximum liability under this agreement shall not, in any case, exceed the price of the product claimed to be defective. There are no warranties of merchantability or fitness for a particular purpose.

Please feel free to contact us at with any warranty questions or concerns.

Need help with your installation? Check out our Database of How To Instructional Videos as well as Documentation on various vehicle makes and models.

Video Installation Library

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