Advancing Light Environment Health
We Build Light for Life
From Spectrum to Wellbeing
Quantify how light supports health, comfort, and human performance — in real spaces, for real people
In. Licht delivers evidence-based measurement tools for healthy lighting design, WELL projects, and high-quality indoor environments
The In. Licht Series
A complete measurement ecosystem for healthy lighting — from everyday assessment to professional WELL verification
In. Licht pro
Lighting Fact Sensor
For Entry Level Architect/Interior Designer
In. Licht Well
Light and Air Quality Guardian
For Householder/ WELL Certification Project
In. Licht Ultra
Spectrum/WELL Meter
For WELL AP & Human-Centric Lighting Expert
How In. Licht Stands Apart
Making Healthy Environments Measurable
In. Licht is built around one principle: Healthy light must be perceptible, measurable, and verifiable — not just visually appealing
” Make Sense for WELL “
Make health perceptible, visible, and interact-able
Works with WELL — IWBI Licensed
Made in Taiwan | Recognized Globally
Lighting Recipe Studio is an IWBI member organization committed to advancing evidence-based human-centric lighting.
In. Licht Ultra was approved under the Works with WELL program in 2024, becoming one of the world’s first WELL- recognized light measurement tools for healthier and more productive spaces.
Measure Light for Health and Performance – Not Just Brightness
Measure Light. Improve Life.
Lighting impacts far more than visibility
It influences circadian rhythm, comfort, focus, and long-term wellbeing.
In. Licht enables professionals and users to move beyond specification-based lighting toward measurable environmental outcomes.
“Trusted by Professionals Across Industries”
In. Licht supports WELL consultants, Lighting designers, Facility managers, Healthy building teams, Researchers and educators delivering consistent measurement, reporting, and verification for healthy lighting environments
The quality is very good, completely consistent with the seller’s description, very satisfied, really like it, completely beyond expectations.
The quality is very good, completely consistent with the seller’s description, very satisfied, really like it, completely beyond expectations.
A must-have tool for WELL projects
I’ve been a WELL consultant for several years, and measuring light environments used to require multiple bulky devices.
The In.Licht Ultra is incredibly compact yet provides over 20 essential light metrics in seconds.
Being a Works with WELL approved device, it saves me so much time during on-site evaluations and client discussions.
Highly recommended for anyone working on WELL certification projects.
Very capable device for lighting design
Compact easily used device with an intuitive app. Being somewhat of an ‘analog man’, I was initially challenged by the complete lack of any documentation. I scanned the QR code on the device and downloaded the In Licht Pro app. I did experience an issue initially connecting my Android phone to the device, so I emailed customer service. The email was answered within a few hours, on a Saturday night, and the rep asked a few follow up questions. The situation was resolved shortly after, and the device connected easily. Five stars for the excellent customer service. I am still learning the various functions of the In Licht Pro, but I am favorably impressed thus far. Within minutes, I was able to check the CCT and Lux of various LED fixtures, and balance the lighting in a hallway with 12 individual LED track lights.
Highly recommended!
As an experienced lighting designer for many years, I find that In. Licht Ultra stands out from every other spectrometer I’ve used before.
First of all, its compact size and lightweight design make it easy to carry around on site. Second, it provides all the essential measurement metrics a lighting designer needs and most importantly, it can generate a complete measurement report effortlessly.
One of the features I value most is its Human-Centric Lighting measurements, which very few spectrometers on the market offer in such a complete way. The flicker indicator is also incredibly useful, I can instantly see whether a light source has high flicker or is flicker-free.
Another feature I truly appreciate is the step measurement function. With just one click, I can measure multiple points quickly. I still remember the days when I had to measure over 100 points manually, writing everything down on paper and later transferring it to the computer back at the office. I wish In. Licht Ultra had been available back then!
I highly recommend In. Licht Ultra to fellow lighting designers. It’s a powerful, reliable, and time-saving tool.
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Start Measuring Better Light Today
Upgrade lighting from assumption to evidence
Healthy environments begin with measurable light
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