Technical data:
Cutout dimension: 28x28 cm, external dimension: 35x34,5 cm, roof thickness: 2,5x5 cm, height above roof: 9 cm, inner frame: 32x32 cm
12V vent:
Power input: 25 watts, maximum current consumption: 1,9 amps, diameter: 180 mm, maximum ventilation: 50cm2
Mounting advice: no drilling on the roof, inner frame is directly bolted to the outer frame