GM-100light meter
Measure color and spectrum wherever the work takes you.Pocket-size build, lab-grade result.
GM-100 · SPECTRAL LIGHT METER
One instrumentthe complete picture.
Laboratory-grade light measurement with color, spectral and angular profile, made to go with you everywhere. Designed and crafted for lighting professionals.
PRODUCT FILM16:9 · 1080P
7+essential measurements
AIpowered precision
360°connected workflow
R-1smart stage
See how light performs from every angle.Capture intensity, color and spectral profiles in minutes.
01 Why GM-100 and R1
Finally, measure colorand angular profilein one package.Ultimately portable.
Lighting professionals have long had to choose between costly laboratory spectrometers and compact tools that compromise accuracy.GM-100 brings precision, stability and mobility to on-site light measurements. The R-1 Smart Stage replaces bulky laboratory goniometry, capturing a light’s angular profile in minutes.
Accurate. Stable. Portable.
Confidence in every reading.
A cutting-edge spectral sensor, individual calibration, AI-powered algorithm and ever-growing database work together to deliver dependable readings—across devices, temperatures and demanding environments.
LuxCCTSDCMJNDCRICQSSpectrum
02 What it measures
Light
from every angle.
Color quality
Accurate illuminance, color temperature and color difference, validated across 5000+ white sources with a selectable reference.
Spectral quality
Measure spectral fullness and color-rendering fidelity through CRI, CQS and full-spectrum analysis.
Shape quality
Measure angular profiles of light intensity, color and spectrum in minutes, anywhere.
Field-proof stability
Unlike grating-based spectrometers, a temperature-stable spectral chip and qualified optical stack maintain reliable color measurement.
Constantly upgrading
An ever-growing database and evolving AI algorithms keep pace with fast-changing lighting technologies through over-the-air updates.
Complete field records
Pair every measurement with photos, audio notes and site details—ready to review and share.
03 Connected ecosystem
GM100R1 Smart StageGG Light APP
Your measurements,
in one fluid workflow.
Measure light with GM-100, record installation-site information with photos and audio notes in the companion app, review and share complete results, then extend the workflow with R1 Smart Stage for angular distribution analysis.
04 Built to perform
Serious capability.
Remarkably compact.
Fast processing and generous on-device memory keep every interaction immediate.
4-core · 1.5 GHzCortex-A72 · 64-bit
Responsive on-device computing
Responsive on-device computing
2 GB · 8 GBMemory + storage
Measurement notes, safely stored
Measurement notes, safely stored
1000+ spectraOn-device database
5000+ white sources tested
5000+ white sources tested
OTA updatesSophisticated AI algorithms
Evolving continuously
Evolving continuously
TALK TO GGI LIGHT
Measure light
without compromise.
Tell us what you are measuring. Our team will follow up using the contact details you provide.