The HydroFarm AutoPilot Master Digital Timer is a sophisticated environmental control system designed for hydroponic gardening. With a digital control style, this controller allows users to easily program and automate various aspects of their grow room, including lighting schedules. The model number for this specific controller is APCTMDT-PNPN-A, indicating its advanced capabilities for managing light cycles and other environmental factors crucial for successful plant growth. Perfect for indoor gardening enthusiasts looking to optimize their growing conditions with precision and efficiency.