Light Measurement Systems, Specialty Light Sources, LED Signage, LED Lighting

Major Product Lines & Custom Product Solutions - Click on One to Learn More

Light MeasurementLight SourcesLED SignageLED LightingCustom Product Solutions

ILT, a US company in business for 50 YEARS, produces Light Measurement & Detection Systems, Specialty Light Sources, LED Sign Modules for use in illuminated signs, and LED Lighting Fixtures to replace inefficient light fixtures in gas pump canopies, food and beverage open and cooler cases, and architectural lighting. ILT also produces CUSTOM PRODUCT SOLUTIONS in ALL product areas.


What's New

ILT5000 Research Radiometer

New ILT5000 Research Radiometer

The ILT1700 for the 21st Century!

Improvements include rapid measurements (1-100hz), a broader dynamic range (100fA to 1mA), extensive supporting software apps, built-in wireless, data storage, and rechargeable batteries!

ALL ILT1700 Detectors will work with the new ILT5000 Research Radiometer!

The ILT5000 comes with NIST traceable, ISO 17025 accredited calibration.

Calibration Services

Calibration Services

ILT Calibration Services

As our customers have adopted quality manufacturing standards such as ISO17025 and ISO9001, their need for annual NIST traceable re-calibrations has also increased. To meet this demand, ILT has expanded our calibration lab and our standard calibration service offering to include non-ILT light meter and system calibrations (the "C" part numbers on the calibration services Web page).
ILT can also scan 10mm cuvettes for transmission or absorbance ("CSTM" calibrations).

Featured Product


LED Sign Retrofit Rail System

ILT Innovations Division’s new LED Signage Retrofit System enables easy replacement of existing fluorescent tubes or neon with LEDs quickly and cost-effectively.

The System includes an extruded Rail which can be cut-to-length in the field, custom Mounting Brackets and industry proven Summit LED Sign Modules.