Can I only control GRAU lights with the GRAU app? 24 October 2025 11:36 Updated No, you can use the GRAU app to control all lights that have a GRAU app control or a Casambi module built in. Related articles Can I convert my existing GRAU light to GRAU app control? What are the advantages of a GRAU app control? The LED on my Falling Leaf is very dim and emits a very warm light. Why is this? Can I switch and dim lights with GRAU app control without actively using the GRAU app? You can find spare parts here