Vehicle lighting and harness manufacturer Optronics has launched geometric MCL Series marker/clearance lights, saying they offer a high-style alternative while using the same 3/4-inch hole.
Optronics Introduces Uniquely Shaped Marker/Clearance Lights
Optronics said its new, geometric MCL Series marker/clearance lights offer a high-style alternative while using the same 3/4-inch hole.

Optronics has launched its geometric MCL Series marker/clearance lights.
Photo: Optronics
Optronics’ MCL2300, MCL20, and MCL16T LED marker/clearance lights will enable trailer OEMs to create a signature, branded look for their vehicles. It also will provide broad customization options for owner-operator and small fleet owners for whom trailer appearance is important.
Optronics said the new geometrically shaped marker/clearance lights are a marked departure from the conventional.
The new lights give customers the choice between round, oval, and rectangular lights. According to Optronics, these lights offer an increased light size while fitting into a standard 3/4-inch hole, courtesy of the included grommet.
The PC-rated lamps can be used as a combination side marker and front or rear clearance lights when mounted on an angle.
Three Light Choices
The three-diode MCL2300 lamp boasts a rectangular design measuring 2.31 inches wide, 1.43 inches tall, and 0.64 inches thick.
The three-diode MCL20 is an oval marker/clearance light measuring 1.875 inches wide, 1.5 inches tall, and 0.5 inches thick.
The single-diode MCL16T is a 1.25-inch diameter round light with a 1.31-inch profile and stands out with its unique fluted lens pattern.
The MCL2300, MCL20, and MCL16T marker/clearance lights are in stock and available for shipping immediately.
Durability
The lamp’s lenses are made of tough polycarbonate material that is sonically welded and resistant to dust and moisture. A solid-state, surface-mount device design protects the electronics against moisture, shock, and vibration, according to the company.
Optronics said these lamps come with a no-hassle, one-diode lifetime warranty protection that will replace a lamp if even one diode fails.
Installation and Use
Optronics said the new marker/clearance lights are ideal for a variety of vehicles and applications, including work trucks, dry vans, reefers, box trucks, and more.
“The lights are versatile and easily installed without any need for retooling, maintaining the same manufacturing process that our OEMs are accustomed to,” explained Michael Whitman, director of production management for Optronics. “Despite the different shapes, they still fit into the 3/4-inch cutout hole that’s become the industry norm.”
More Equipment

Hyundai Translead Bringing Trailer Production to U.S.
The new Hyundai Translead production sites will improve trailer and body delivery to customers by reducing lead times and leveraging a growing dealer network.
Read More →
HDT Honors the Best New Products of 2025 at TMC [Photos]
Heavy Duty Trucking's Top 20 Products awards recognize the best new products and technologies. Check out the award presentations at the 2026 Technology & Maintenance Council annual meeting.
Read More →
Detroit Engines: Trusted Performance, Built for What's Next
The Detroit® Gen 6 engine platform proves that real progress doesn’t require a complete redesign. Built on 20 years of trusted technology, these engines are designed for efficiency, stronger performance, and greater reliability than before. And they do it all while complying with 2027 EPA standards on every mile.
Read More →
Hyundai Translead Expands Trailer Tech, Introduces Long-Life Dry Van, New Refrigerated Body
Smart safety systems, AI-powered visibility, a 10-year-warranty dry van, and a modular refrigerated body debuted at TMC.
Read More →
EPA Targets DEF Sensor Failures Behind Truck Derates
New guidance allows engine makers to replace problematic DEF sensors with NOx-based systems, aiming to reduce unnecessary derates and downtime caused by failures in the sensors designed to monitor diesel exhaust fluid on trucks.
Read More →
Heavy Duty Trucking is Searching for the Top Green Fleets of 2026
Is your company a leader in sustainability efforts among trucking fleets? If so, Heavy Duty Trucking's editors want to hear from you.
Read More →
Clarience Technologies Expands Safety and Visibility Portfolio at TMC
From advanced connectivity to AI-powered cameras and next-gen fuel filtration, Clarience companies outlined a roadmap for safer, more connected trailers at TMC’s Annual Meeting.
Read More →
What's Real in Advanced Truck Technology? ACT Expo's Erik Neandross Weighs In
Artificial intelligence, the software-defined vehicle, telematics, autonomous trucks, electric trucks and alternative fuels, and more in this HDT Talks Trucking interview
Read More →
Freightliner Donates Fifth Generation Cascadias to Be Pro, Be Proud
Freightliner has donated three Cascadia trucks to support Be Pro, Be Proud, expanding mobile training efforts aimed at building interest in skilled trades careers.
Read More →
Technology & Maintenance Council 2026 Annual Meeting [Photos]
Couldn't make it to Nashville for TMC's 2026 annual meeting? Check out these images.
Read More →
