Duro-Test Canada Company, is a wholly-owned subsidiary of LDI, Lighting of Chicago, Illinois. Since opening its doors in 1974 LDI has become one of North America's largest exclusive marketers of premium end user light sources. The Canadian operation was established in 1955 as Duro-Test Electric.

All Duro-Test products are built for durability and strength, and they will outlast conventional bulbs several times over. A free replacement warranty covers most of the lamps the company markets.

Duro-Test products are marketed directly to commercial and industrial end users through an extensive sales force and management team. We have approximately 65 qualified lighting consultants providing, coast to coast service to our customers. Our Head Office and Warehouse facilities are in Toronto with branch offices in Vancouver and Montréal.

Duro-Test has gained a reputation as an innovative leader in the lighting industry. Among its firsts,"Vita-Lite", the first sunlight simulating general purpose fluorescent lamp. Introduced in 1967, Vita-Lite (Vitalux) is still the closest anyone has ever come to simulating natural outdoor light.

Another leading product line is the Watt-Saver series of incandescent and fluorescent lamps that utilize krypton fill-gas for reduced energy consumption.

Through a comprehensive and continuous training program our representatives are qualified to assist customers in obtaining the correct lamp to suit the situation with emphasis on controlling maintenance, energy and production costs.

A highly skilled Head Office staff provides support for our field personnel.