The GT160 with controller pulls up to 800m3 per hour through a 160mm flange. Its built-in speed controller eases the fan back when the room cools and lifts it when lights heat the space. Power draw is 100 watts at 0.5 amps. Backward-curved impellers add up to 15 percent more airflow.
A digital temperature sensor on a 4-metre cable feeds the controller, so the fan tracks conditions without you touching a dial. This suits a two-light room where the temperature swings between light-on and light-off. Cable, EU plug, sensor and mounting bracket are all in the box. The motor carries a one-year warranty.