Trunk Light LED for 2005-2014 Ford Mustang GT

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Availability: In stock

Ships today if ordered in the next 3 hours and 58 minutes!

  • Red
  • Cool White (6000K)
  • Warm White
  • Blue
  • Green
  • Amber
  • SMF2 (16 lumens)
  • SMF4 (56 lumens)
  • SMD12 Board (118 lumens)
  • FlexLight (200 lumens)
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Trunk lights are used in the trunk or cargo area to illuminate the space at night. From the factory, the bulbs are incandescent, lighting up in a yellowish color.

By changing the factory bulb to an LED, you can illuminate the area with a much brighter light, and add a pure white, luxury look.

The installation is 100% plug-and-play, just replace your factory bulb.



SMF2: This bulb has a standard festoon base, with two 5050-size Epistar SMDs and a protective cover for added durability and style. 

SMF6: Standard festoon base, with six 5050-size Epistar SMD chips arranged on a rectangular panel.

SMD12 Board: This is an LED panel, fitted with 12 5050-size Epistar SMD chips. Comes with spring-loaded festoon-style adapter for direct installation. Plug the adapter into the bulb socket, then just stick the board in place with the mounting adhesive pad. This may need to be mounted to the exterior of your trunk light housing.

FlexLight: This is a 20-inch, low-profile LED strip, with 30 5050-size Epistar SMD chips. Comes with spring-loaded festoon-style adapter for direct installation. Mounts in your trunk area, flexible and waterproof, for maximum brightness.

Fitment. All bulbs use a standard 31mm terminal, with aluminum contacts, designed for exact replacement of your factory 31mm festoon bulb. Just remove the old bulb, and plug in the new LED.

PLEASE NOTE: SMD12 Board is an LED board, which may mount to the exterior of your trunk light housing. FlexLight is an LED strip, which plugs into your factory trunk light socket, and mounts directly into your trunk area using included adhesive strips or velcro. If you would like a direct replacement bulb, we recommend SMF2 or SMF6. We offer SMD12 Board and FlexLight for those who want to maximize brightness.

Included in your order is ONE BULB.


These LEDs are available in crisp, bright colors including White, Warm White, Blue, Red, Amber, and Green.

 We strongly recommend white or warm white for the best visibility.

Color Reference Banner


Diode Dynamics offers several brightness options so you can choose what fits you best.  These options are listed by the design and the lumen output of each bulb:

SMF2: Slightly lower brightness than OEM bulbs, but still provides the crisp, modern color of LED.
SMF4: Slightly higher brightness than OEM bulbs.
SMD12 Board: Much brighter than OEM bulbs. These are bright!
FlexLight: Extremely bright compared to OEM bulb.

Lumens: BUYER BEWARE! Most sellers just provide "calculated" lumen numbers, based on the maximum potential brightness of the LED chips on the bulb. For example, if a bulb has five 10-lumen chips, they will rate it at 50 lumens. However, this is not accurate, as the design of an LED bulb does not get rid of heat fast enough to run the LEDs at maximum.

These "calculated" lumen ratings are much, much higher than the true, measured light output, so it will look like competitors' bulbs are brighter than ours. This is because Diode Dynamics does not provide inflated "calculated" numbers; we believe it is misleading. We test the actual brightness of the bulbs in our lab, to provide real lumen output measurements. Our measurements are accurate, but they are usually much lower than the misleading "calculated" figures. Please click here to learn more about LED brightness measurement.



LED Components. Diode Dynamics uses only the highest quality LED chips in the production of its bulbs. This means we use only brand-name suppliers such as Epistar, Cree, Osram, and Samsung.

While Diode Dynamics bulbs may look the same as others on the market, most copycat bulbs use economy-grade LED chips in order to reduce costs. This greatly reduces the reliability and overall brightness of the bulb when you compare it to Diode Dynamics.

Construction. Although LED technology allows for extremely long bulb life, the market is flooded with cheap LED bulbs that fail prematurely due to inferior construction. The worst enemy of LEDs is excessive heat, and when bulbs are not designed properly, they do not disperse heat as well, leading to premature failure.

Off-brand, cheap bulbs exhibit poor solder uniformity, high levels of flux in the solder, uneven chip placement, low-gauge terminal wires, poor assembly, and bulbs held together with inferior adhesives. At best, solder joints will crack and fail on low-quality LEDs after a few weeks of use. In the worst case, these bulbs can damage housings as the extra flux and adhesive evaporates and creates a residue on the lens of the housing.

Diode Dynamics bulbs are produced with modern, computerized equipment, and only the best materials, to ensure complete uniformity, high quality, and long bulb life.

All Diode Dynamics products come with a 30-day satisfaction guarantee and a 3-year limited replacement warranty. For more information, please view the Warranty Information page.

Bulb Size 39mm Festoon, also known as 211 212 212-2 214-2 6413 6429
Year 2005,2006,2007,2008,2009,2010,2011,2012,2013,2014
Make Ford
Model Mustang GT
Application LED Bulbs
  1. Can only do so much Review by Stephen

    The light output and color is great, but it's really wasted on the poor trunk lighting design. Great for the price though.

    Im not sure if it was just my housing or not, but i had to pinch the metal contacts together more to get it to fit snugly. (Posted on 7/2/15)

  2. Great Product Review by Butch

    One word, works. Purchased for the wife's Mustang, and it puts out a nice bright light for her trunk. (Posted on 6/19/15)

  3. Very clean crisp light Review by Black5ohh

    Straight forward install and gives a much more modern look (Posted on 2/10/15)

  4. looks great. Review by Nemesis

    I love the crisp white look. No matter what you will only get so much light with the stock housing. Unless you get LED's that stick outside of the housing it will not be much brighter than stock.

    I do like it over stock. (I hate stock yellow bulbs) but...I just wish it threw out more light. (Posted on 2/9/15)

  5. Easy and Bright!! Review by Bobby

    This was a pretty straight-forward replacement. The actually LED bulb was well built and is very bright once installed!!

    At first I wasn't certain it was installed right, but that's because the fuse blew when switching bulbs. Easy fix. Been running great since. Now I can see all of my trunk at night. (Posted on 1/10/15)

  6. SMF4 Review by mustang8918

    I got the cool white smf4 for the trunk of my '14 and it made a little brighter but not a drastic change like the map lights made. Still a great product overall. (Posted on 12/13/14)

  7. Perfect upgrade for your Mustang!!! Review by Ryan

    I bought the brightest cool white LED lights Diode Dynamics had without modification for my 2014 Mustang GT to replace those horrible, dingy yellow Ford OEM lights that are throughout the car... They are absolutely awesome, and all three areas I upgraded matched perfectly!!! Great product DD!!! I will be upgrading any bulb I can with their products in the future for my car... This was for the trunk light... Perfect fit... (Posted on 6/2/14)

  8. Good stuff Review by Thomas T

    Good stuff. Medium light is brighter than OEM and looks way better than dim OEM. (Posted on 4/28/14)

  9. Easy replacement Review by Matt

    It was a simple 1 minute job to swap this bulb into the stock location. It is still a little dimmer than what I wanted, but given the location under the trunk latch I doubt anything would really help the overall illumination. I think I will try to figure out how to wire in a strip light mounted on the rear deck for better illumination...but that requires wire routing and hiding. It is still better than stock. (Posted on 4/24/14)

Worry-free warranty

  • - Full 3-year warranty on all products
  • - No waiting: we usually send new items out with a return label (US customers only)


You will get quick help from our trained staff for any issues.

All Off-Road Lighting also carry a limited lifetime warranty.

For further details, please see our full article.

Domestic (US) Customers

  • - Just $5 per order with our Diode Delivers program
  • - Same-day shipping for all orders placed by 12:00 PM CST (or until 4 PM with rush processing)
  • - USPS, for delivery in 2-4 days (on average)
  • - Express services are available, see exact pricing at checkout
  • - Fully Insured


International Customers

  • - We ship to all countries via standard mail
  • - Usually around $10 for LEDs, or $25 for HIDs.
  • - Choose your service on checkout to see exact prices:
  • - USPS 1st Class: 2-5 weeks
  • - USPS Priority: 1-2 weeks
  • - Express EMS: 1 week
  • - Please email us if you are unsure about shipping to your country.

You will receive updates from our site when your order is shipped, along with a unique shipment number to ensure that your order is correctly accounted for. This allows you to easily reply to us if you have any concerns.

Whether your order is big or small, it is tested through many run cycles, and each bulb is tested before shipment. Every single bulb. Every time. And if anything does go wrong, you can rely on our industry-leading warranty for worry-free replacement.

If you're not happy with your items, we want to make it right. So we have some pretty awesome return policies:


30 day return policy. All customers have 30 days from the date of original order shipment to return items.

Full refund, no fees. At Diode Dynamics, we offer free returns. That means no restocking fees, no administrative fees, and no hassle!

 Free return label. If your original order was over $50, you get a free return label for your items (US customers only). If your order was less than $50 or international, you can send the items back through your preferred method.


Within 30 days: If your original order was over $50, you can get new items shipped to you with a return label (US customers only). If your order was less than $50 or international, we can send you the new items first, but you are responsible for returning the old items.

Within 90 days: Any item can be returned for exchange or store credit within 90 days. The buyer is responsible for the cost of the return shipping, and must first return the old items. We'll still cover the postage for the new items.


Please note: due to the nature of custom acrylic pieces, we cannot offer any refund or exchange for returned custom acrylic items.


To make a return or exchange, please request an RMA, or give us a call. When we get it back, you will be notified and credited appropriately.

Again, all returns must be approved, with an RMA. This is so that we can process your return as quickly as possible when we get it. If you would like to return an item, please Request an RMA. Please include as much information as possible about the reason for return.

Alternatively, you can also send us a message, or give us a call!