Trusted by Research
Connect several LYS Buttons to one phone via Bluetooth using the LYS Collect app. Export light and movement data directly to the study leader's email. This solution is ideal for collecting data locally. For instance for research projects involving participants who don't have a personal smartphone.
LYS Light Diet app and Data Platform
Let each participant connect their LYS Button to their own LYS Light Diet® app. Get further insight into the participant's light intake, chronotype, age, gender, as well as perceived sleep and energy levels. Access all raw data from the LYS Data Platform. This solution is ideal for collecting data remotely.
The LYS Button
Continuous light and movement
Used in leading research in the field of sleep, light and chronobiology accross the world, the LYS Button allows for seamless and simple tracking of light exposure. The wearable light sensing device also tracks movement with the inbuilt accelerometer. Easily clipped to everyday clothes, the LYS Button is a truly human centric tool to measure light intake with study participants.
7 days battery life on a single charge
15 seconds sampling rate
Water and dust resistant, for everyday use
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Collect high quality participant data remotely
Give participants access to the LYS Light Diet® app: a user-friendly and highly engaging app that allows users to understand light’s impact in real-time, identify their chronotype and enables a more accurate data collection process. Improves study engagement, retention and adherence.
Access your data anywhere, anytime
Built to save time in the data collection phase, the LYS Data Platform aggregates online the data collected by the Buttons and app. The platform offers remote access to the data collection status, flags unreliable data entries and allows unlimited raw data downloads.
LYS Collect app
Group all your data on one device
Built for studies where participants don’t have a phone, the LYS Collect app gathers all data on a master phone. The app offers multiple
transfer options to export the data to other devices and allows unlimited raw data downloads.
What does LYS measure?
Learn more about LYS for research
What researchers say
LYS is an innovative design which shows how the daily patterns of light influence our sleep-wake cycles in a vibrant, user-friendly visual display. Their data services provide great potential in assisting research on circadian rhythms, health and sleep in the future. It is definitely a pleasure to work with such a caring and enthusiastic team.
— Sophina Chan, Researcher,
The Hong Kong Polytechnic University