Medic Grow GLC-1 Lighting ControllerThe Medic Grow GLC 1 Lighting Controller Controls Up to 100 lights Suitable for all Medic Grow lights No need for a switchboard Set output levels from 10% to 100% Temperature and humidity sensors with solid cable connection or Bluetooth communication App operation on the phone to master controller via Bluetooth Easy and safe installation (low voltage device) Protected against short circuit Double temperature safety feature Control up to 100 ballasts