Features
- Brighter, cool white LED output
- Increased output with LED appearance
- Direct replacement for Ford Mustang, Ford Mustang GT, and Shelby GT500 reverse light bulb, Honda Ridgeline trunk light bulb
- Plug and play, no modification with factory 921 bulb size
- Improved visibility behind vehicle
- Available in multiple brightness levels
Overview
Brighter Backup. These replacement LED bulbs are a great way to improve the look and function of the reverse light on your Ford Mustang, Ford Mustang GT and Shelby GT500, and of the cargo lights on your Honda Ridgeline. You will get higher visibility at night, with a modern look. The installation is straightforward, with just a bulb swap - making this one of the easiest ways to improve the Mustang's, the Mustang GT's, the Shelby GT500's, and the the Ridgeline's lighting.
Brightness. All Diode Dynamics LED lighting is rated with accurate, measured lumen figures, not calculations or guesses. We test the true output in-house, and provide you the real numbers to compare.

Colors that match. Most of us have seen lighting setups with random shades of white that don't quite match. At Diode Dynamics, we operate an integrating sphere, which is a piece of lab equipment used to analyze exact color spectrum of the LED bulbs we produce. By testing each batch of products, we can ensure that all bulbs will match in color, to avoid various tints of white. These bulbs will match any other upgrades you may have from Diode Dynamics, for factory-style uniformity and a clean appearance.
Reliability. Diode Dynamics LEDs are built with constant-current inductive circuitry, along with transient suppression. They are tested by our engineering team with a device that replicates years of voltage spikes, like the ones generated each time the alternator starts and stops on your Mustang GT. This is what kills most LED bulbs over time, but just like factory components, Diode Dynamics LEDs are designed with built-in circuit protection. While more expensive than simple bulbs, this allows Diode Dynamics LEDs to last for years, with no flickering or failure.
Experience. After over a decade in business, Diode Dynamics is one of the most trusted names in automotive LED lighting. We directly assemble and engineer an increasing number of products in the United States, allowing for higher quality and performance, with the newest and brightest LED technology. Whether it's a Ford or anything else, we pride ourselves in offering only the best possible LED solutions. Please contact us if you'd like to discuss your lighting project!
Bulb Options
921 HP36 ![]()
- Omnidirectional LEDs for full distribution in housing.
- Metal base for thermal dissipation and reliability.
- Nonpolar circuit design with voltage spike protection.
- 210 lumens per bulb.
Fitment
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2010-2012 | Ford | Mustang | Base |
| 2012 | Ford | Mustang | Boss 302 |
| 2010-2012 | Ford | Mustang | GT |
| 2010-2012 | Ford | Mustang | Shelby GT500 |
| 2006-2014 | Honda | Ridgeline | RT |
| 2006-2014 | Honda | Ridgeline | RTL |
| 2006-2014 | Honda | Ridgeline | RTS |
| 2007-2008 | Honda | Ridgeline | RTX |
| 2014 | Honda | Ridgeline | SE |
| 2012-2014 | Honda | Ridgeline | Sport |
Returns may be accepted within 14 days of purchase pending Return Merchandise Authorization (RMA). No returns or cancellations on special order items. All returns will be charged a 20% restocking fee, no exceptions.
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. Item must be able to be resold as new.
Several types of goods are exempt from being returned. Hazardous materials, fluids, greases, chemicals, and clothing are not able to return.
Free shipping is available within the lower 48 states for most orders totaling $199 or more. A free shipping option will be available during checkout. This offer is for delivery address in the continental United States and excludes shipments going to Alaska, Hawaii, Military Boxes, and items that require freight shipping.
Processing Time
Patterson Performance stocks a large quantity of items at any given time. Some items may require drop shipping from one of our various distributors. In stock items will ship within 1-2 business days. If you're needing your product quickly, please contact us to verify product availability before placing your order. Orders requiring additional verification (security concerns, incorrect information, etc.) may need additional processing time. Estimated shipping dates are not guaranteed and are subject to change based on inventory levels and manufacturer lead times. Backordered items are shipped immediately once available.
Items ship daily, If the item you ordered is not in stock, a member of our team will contact you via email / phone.
Patterson Performance will only ship to an address that varies from your billing address if payment is made via Paypal or a financing partner.
Patterson Performance ships from multiple warehouses throughout the United States, and sometimes from manufacturers overseas.
You can simply contact us via email / telephone for a live inventory check
Find more information at www.P65Warnings.ca.gov.
