About Us

What We Do

Diode Dynamics is a manufacturer of LED lighting products for the automotive industry. Founded in 2006, the company's focus on developing innovative products, with superior quality and excellent service, has allowed for continued growth over the past ten years.

By directly manufacturing many of its products in St. Louis, Missouri, Diode Dynamics is able to carefully control quality, while bringing unique products to market faster than the competition. These products are backed by an industry-leading no-hassle warranty, and the best service and support experience possible.

Whether it's replacement LED bulbs, full LED assemblies, multicolor accents, or unique lighting control modules, Diode Dynamics is the leader for quality LED lighting products.


Our Mission

We make unique, high-quality, automotive lighting products. 

We empower our fellow enthusiasts through education. 

We provide the best service in the industry, through well-trained and knowledgeable staff, and policies that always place convenience first for our customers. 

We are automotive enthusiasts, and we love awesome lighting.


Our Story

In 2006, I was exploring automotive lighting for my own vehicle, and found that it was a guessing game when ordering these kinds of parts online. It seemed like it was just dozens of dropshippers, people who just want to make a buck. 20 percent restocking fees? Orders shipped from China? Bad reviews everywhere? There had to be a better way. I formed Diode Dynamics to offer a solution.

Our philosophy is simple: remember what is important to the customer. 

Cheap, fast shipping. When I buy things online, I like fast, inexpensive shipping. So we provide same-day domestic shipping for any size order. And you'll get it in just 2-4 days, since we ship everything from our centrally-located 16,000 sqft warehouse in Saint Louis, Missouri, USA.

Quality products at good prices. We maintain our own inventory with state-of-the-art industrial warehousing and fulfillment systems. This reduces our costs, and we pass that along to you. But you can always find cheaper parts on eBay. The difference is, all of our items are the very best quality, and always use the newest and brightest technologies. After all, I wouldn’t put junk on my own car. Everything we sell is installed on my own vehicle. Our customers choose Diode Dynamics for the combination of quality and low prices.

Excellent customer service. Good customer service needs to be fast, friendly, and effective. That’s why we place a huge emphasis in hiring only those individuals who have experience in the field, whether they work in service, support, shipping, or accounting. When you ask a question, you won’t get a canned answer. You’ll get a real person who knows what they are talking about. And you’ll get a reply within 24 hours (although usually it’s much sooner than that).

A full warranty that we back. Another problem that I experienced was poor fulfillment of promises when it came to warranties, or crazy instructions to get warranty support, making it impossible to actually get help. With us, there’s no shipping parts to China or waiting for weeks for the factory to send a replacement. Usually, we don’t even need you to return anything that you are having trouble with. If we need to, we’ll mail your replacement items with a return label for the defective part. You trust us with your business, so it’s only fair to trust you when you need help.

My greatest satisfaction comes from the happiness of my customers when they get their premium accessories. There’s no feeling like turning on your super-bright HIDs or LEDs for the first time, or installing premium accents and showing them off to your friends. Our goal is to make that experience easier, faster, and better for you at each step of the way.


Paul McCain
General Manager, Diode Dynamics


Company Milestones

Company Timeline


Meet Our Team! 

The Diode Dynamics team is a group of over 40 individuals who work hard to make and deliver quality lighting products, with the best service possible. We are growing quickly, due to our focus on manufacturing more products here in the United States.

In order to achieve the standards our customers expect, we invest strongly in each of our employees. All of our staff is trained in electrical theory, 12-volt systems, and electronics manufacturing, through a rigorous eight-week academic and practical course. By thoroughly understanding the products we produce, we all have a shared understanding of the requirements and opportunities that exist, allowing each of our employees to contribute to higher levels of quality and innovation.

If you're interested in joining the Diode team, please view our Employment page to learn more.


Our Facilities 

Diode Dynamics is based in St. Louis, Missouri. Since 2014, the company has been located in the Earth City business park, with direct access to Interstate 70 and 270, and close proximity to USPS, UPS, and FedEx hubs.

We currently operate out of two buildings, with total space of 54,000 square feet.


4200 Shoreline Dr.

Main headquarters and distribution.
- Warehouse and distribution
- Test garage and media studio
- Showroom, open to public
- General offices


13743 Shoreline Ct.

Engineering and compliance testing.
- ESD-safe electrical laboratory
- DOT/SAE compliance test chambers
- Goniometer and integrating sphere for photometric testing
- Engineering offices

Home of Diode Dynamics Manufacturing.
- Class 8 cleanroom with automated SMT lines
- Wire harness assembly and manual workstations
- Ultrasonic welding and conformal coating
- Metalworking shop with CNC machining, cutting, and press
- Light inject molding and overmolding


Facility Tours

We offer free-of-charge walking tours of our facilities anytime during regular business hours (9-5, M-F). All ages are welcome, but no cameras or recording devices are permitted.

Large groups, please call ahead. It is also best to call ahead if you would like to ensure a tour while manufacturing is in full operation.

Alternatively, we also have an annual open house each fall, where you are welcome to visit and tour our building. Please see social media for updates regarding this annual event.