Bullfan - Step Controller 1 Outlet, Air Extractor Controller Pro (1,5AMP - 2,5AMP)
BullFan's Step Controller, also known as Trafo controller, is specifically designed to work with soundproof boxes, such as the Sonobox, to reduce noise levels and maintain a quiet growing environment. This controller, available for purchase through various outlets like Kulture-Growshop, automatically adjusts the fan speed in 5 steps based on the temperature level.
Product description
BullFan's Step Controller (or Trafo controller) is specially designed to work with soundproof boxes.