In. Licht Ultra

Laboratory-Grade Spectrum & WELL Verification Meter

A professional handheld spectrometer designed for evidence-based healthy lighting evaluation and WELL-aligned project delivery

Designed for Lighting Manufacturers, Designers, Engineers, and Healthy Building Professionals

The Professional Standard for Spectrum & WELL Verification

In. Licht Ultra is the world’s lightest laboratory-grade spectrometer recognized under the IWBI Works with WELL program.

Weighing only 59 g, In. Licht Ultra delivers advanced spectral and human-centric lighting metrics — enabling reliable verification of lighting quality, comfort, and circadian impact in real environments.

  • Works with WELL approved
  • Lab-level calibration
  • Exportable documentation for project delivery
  • Trusted globally by consultants, engineers, and research teams

Key Capabilities

23+ Advanced Measurement Indicators

In. Licht Ultra provides a complete set of metrics required for professional lighting evaluation, including:

Circadian & Human-Centric Metrics

  • Equivalent Melanopic Lux (EML)
  • Melanopic Daylight Illuminance (m-EDI)
  • Circadian Stimulus (CS)
  • Circadian Action Factor (CAF)

Photometric & Color Quality Metrics

  • Illuminance (lux)
  • Correlated Color Temperature (CCT)
  • Color Rendering Index (CRI)
  • TM-30 Fidelity & Gamut (Rf / Rg)

Flicker & Temporal Light Modulation

  • Flicker Index
  • Flicker Frequency
  • Percent Flicker
  • SVM

Spectral & Chromaticity Analysis

  • CIE 1931 / 1976 chromaticity
  • Duv, SDCM
  • Peak wavelength (λp)
  • S/P ratio

Safety & Risk Evaluation

  • Blue Light Hazard Risk Group

In. Licht Ultra ensures precise, evidence-ready measurement for healthy lighting design and verification.

App & Reporting Workflow

Instant Analytics with the In. Licht Ultra App

Connect via Bluetooth to the In. Licht Ultra App for:

  • On-site measurement efficiency for professionals
  • Real-time visual dashboards
  • Trend graphs
  • Exportable reports supporting WELL documentation

Quality & Certification

Made in Taiwan — Lab-Calibrated, Globally Trusted

Each In. Licht Ultra includes:

  • Third-party calibration certificate
  • 1-year warranty
  • Lifetime software updates

Ultra is widely adopted by WELL consultants, lighting engineers, and research organizations worldwide.

Technical Specifications

  • Lighting Standard: Complies with JIS C 1609-1:2006 General-Purpose AA Class
  • Power: 1,150 mAh Lithium Ion
  • Protocol: Bluetooth/ type C
  • Battery Life:  6 hours
  • Testing Criteria:
  • Illuminance: 1%(5-00lx), 0.5%, (100-75,000lx) @CIE1931 x,y
  • CCT: 1000-10,000 K
  • Accuracy: ±3%
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Deliver Healthy Lighting with Evidence

In. Licht Ultra enables professionals to move beyond specification-based lighting toward measurable, verifiable environmental outcomes.

Upgrade your practice from assumption to evidence.

In. Licht Ultra Accessory Bundle

Enhance Your Professional Workflow

In. Licht Ultra Accessory Bundle

Upgrade your Ultra experience with a premium accessory kit designed for field measurement precision and convenience.

Bundle Includes:

  • WELL-compliant aluminum tripod with panoramic rotation
  • Type-C charging cable
  • Durable transport strap and toolbox support

Built for consultants and engineers who require reliable measurement readiness on every site.

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Product Video

Brochure

In.Licht Ultra (EN) Download File
In.Licht Ultra (CS) Download File
In.Licht Ultra (CT) Download File

User Guide

In.Licht Ultra (EN) Download File
In.Licht Ultra (CS) Download File
In.Licht Ultra (CT) Download File

Tutorial (Video)

In.Licht Ultra – Spectrum/WELL Meter

In.Licht Ultra – Color Quality