Hello, I understand your concern about the PPFD you’re getting and the potential need for a warranty.
It’s important to note that PPFD values can vary depending on factors such as testing height and environmental conditions. Additionally, measurements taken with mobile may introduce some differences.
Based on the other pictures you’ve provided, it seems that your light is functioning within normal parameters. However, to further troubleshoot, I recommend adjusting the light to 100% and conducting another round of testing with a different device if possible.
Feel free to contact our customer service team if you have any other questions or concerns.