Sentinel GPS BHC-1a WM Basic Humidity Controller (Wall Mount) Tubings & Drippers It is powered by three

It is powered by three standard AA batteries

Encourages the production of buds’n’blooms and the output of oils

Not for indoor use

One year warranty on the lamp

Sentinel GPS BHC-1a WM Basic Humidity Controller (Wall Mount) Tubings & Drippers It is powered by threeThe BHC 1a Basic Humidity Controller is designed to control fans, dehumidifier, humidifiers, misters and other ventilation equipment in gardens, greenhouses, grow rooms or other environments. The BHC 1a can operate in either dehumidification or humidification modes. The BHC 1a features a readily visible switch to alternate between dehumidify and humidify settings. The easy to read dials make programming daytime and nighttime settings uncomplicated.