Telos Growcast - Universal Lighting ControllerTelos Growcast Control Any Grow Light Via Smartphone App The Telos Growcast system brings Telos Mesh controller functionality to pretty much any controller ready grow light. Just plug the Growcast into your grow light's controller socket, tap 'create network' in the Telos smartphone app and you're away. You can then regulate lighting patterns via your smartphone's Bluetooth connection and get access to features like Precise PPF, which regulates