Instrument Systems - The expert for accurate light measurement

Giant Testing Equipment Company Ltd is the exclusive China and Hong Kong representative of Instrument Systems.

We offer high-performance optical test & measuring systems for applications in the automobile industry, avionics, and the light engineering sector. These systems are also employed by LED manufacturers and research laboratories.

Giant supplies a broad product range of Instrument Systems for all applications in light measurement including spectroradio-meters, imaging photometers and colorimeters, and accessories like optical probes and integrating spheres.

As a customer, you benefit from our know-how and the high quality of our advice and expertise. Instrument Systems works in standardization committees and associations such as DIN and CIE. We also have a long track record of cooperation with leading national calibration laboratories. Giant is a partner you can trust when it comes to light measurement.

Core competencies at Giant



LED Test & Measurement


Display Test & Measurement


Spectroradiometry and Photometry

Complete turnkey solutions for R&D and production testing have been designed to determine luminous intensity, luminous flux, color coordinates, spectrum and spatial radiation patterns at standard and high-power LEDs in conformity with the CIE 127 guidelines.


Giant offers an integrated range of measuring instruments for testing multifunction displays, flat panel displays, graphics and keypad backlighting, as well as night vision (NVIS) compatible displays in the automotive and aviation industries.


Measurement of the solar spectrum, a solar simulator or an energy saving lamp: the precise scanning and array spectrometers determine radiometric and photometric data like radiant intensity and total radiant power over a wide spectral range from UV to IR.