Quote from ARRI Cine Technik GmbH & Co. Betriebs KG on 15. March 2023, 10:35

The ARRI Photometric App gives you the ability to quickly reference the photometric characteristics, technical specification and more of all the ARRI light fixtures.

Download for Android: https://play.google.com/store/apps/details?id=com.arri.photometrics

Download for iOS: https://itunes.apple.com/us/app/photometrics/id733009338