Truck-Lite is marking its 70th anniversary, celebrating seven decades in vehicle lighting, harness, and electronic system services business.

Founded in 1955 with the introduction of the first sealed lamp for commercial vehicles, the Erie, Pa.-based manufacturer has grown into a global leader with a network of more than 20,000 distribution locations, offering more than 5,000 certified, compliant, and performance-tested products, backed by the industry’s leading lifetime warranty, according to a news release.

Truck-Lite’s history is marked by a series of milestones, the company says. Those include what the company calls the world’s first independent ground wiring system, introduced in 1962, and expansion into harness systems with the ‘world’s first sealed wiring harness’ in 1979. In the ’90s, Truck-Lite introduced LED stop/tail/turn lamps to the military market and expanded globally through acquisitions in 2000s.

“We appreciate the contribution of all our 1,000-plus employees, distributors, and loyal customers in maintaining our uninterrupted success as a supplier to the commercial vehicle industry,” said Jon Stineman, president of Truck-Lite, in the release. “Our U.S. manufacturing footprint, totaling more than 310,000 square feet across three primary Pennsylvania locations, certainly supports our commitment to satisfying our customers’ demands on time.”