About
For over fifty years International Light has been developing products and solutions that meet a broad range of needs and solve a variety of challenges. ILT combines technical lighting and light measurement expertise to provide products and services that shine.
International Light Technologies was formed when Gilway Technical Lamp merged with International Light. Gilway and International Light have long and proud reputations for delivering exemplary customer service, on-time delivery, and technical expertise. Formed in 1969, Gilway Technical Lamp has provided customers with off-the-shelf and customized solutions for a full spectrum of light sources. Since 1965 International Light has been solving the inherent difficulties in light measurement through the design and manufacture of a wide range of light measuring instruments, including the most accurate light meters on the market.
In February of 2022, ILT was acquired by Halma, and is now a division of Labsphere, Inc. International Light Technologies offices, R&D efforts, certified state-of-the-art testing and calibration lab, warehousing and much of its manufacturing are located in Peabody Massachusetts, just 15 miles north of Boston.
Light Measurement Systems
Light Measurement Systems – ILT has pioneered highly accurate, industry leading light measurement systems for a broad range of markets and applications.
Instrumentation and Sensor Light Sources
Instrumentation and Sensor Light Sources – ILT offers a broad range of off-the-shelf and customized lamp and light source solutions including LED, Ultra Violet (UV), Infrared (IR), specialty replacement lamps, and power supplies.
LED Lighting Innovations
LED Lighting Innovations – ILT offers LED lighting solutions for a broad range of applications. We offer a comprehensive suite of LED modules and flexible strips for signage applications including channel letters, sign cabinets, retrofits, and architectural accent and cove lighting. In addition to our stock products, ILT can customize a solution to meet your specific needs. ILT also designs and manufactures LED lighting solutions for freezer and refrigeration display cases, open case lighting, gas canopy fixtures and retrofit kits, under-cabinet lighting, task lighting, retrofits and more. When an off-the-shelf product just won’t do, or when customization is required, our team will work with you to develop the solution that’s right for you. Our experts can help you meet your design goals and provide technical expertise.
Calibration & Testing Services
Calibration & Testing Services – ILT operates and maintains an ISO/IEC 17025:2017 accredited calibration lab on site. We perform calibration and maintenance on all of our light meters and spectrometers. Additionally we will perform NIST traceable, ISO/IEC 17025:2017 accredited calibrations on most optical meters from other manufacturers. ILT will also perform testing on lamps, and transmission test on filters
Browse Our Calibration Services Below
ILT Spectrometer Calibrations – Single and Dual Source
UV-VIS-IR Spectrometer Calibration – Non-ILT Meters
UV Measurement Systems Calibration – Non ILT Meters
Hand-Held Spectrometers & Colorimeters – Non-ILT Meters
ILT Meters, Sensors, Filters and Optics
Meters, Sensors, Filters, Optics and Integrating Spheres – Non-ILT
Illuminance Calibrations – Non-ILT Meters
Cuvette & Filter Transmission or OD Testing
Managing Light 