This quietly running 12 V double ventilator can be easily integrated into existing roof windows from 38 to 55 cm, such as Dometic Mini Heki or MPK, thanks to the mounting material included in delivery and the extendable mounting rails. Advantage: The roof window can be opened and closed without removing the fan. The two ventilators (ø 14 cm) with their strong reversible air flow (aeration and ventilation) ensure fast heat dissipation and regulated circulation. The air flow can be regulated in 6 different speeds via the remote control. The fan has overvoltage protection and can be operated on the 12-volt on-board power supply without any problems. The required rectifier is already integrated in the housing. Dimensions L 32 x W 15.6 x H 3.4 cm, weight 1.2 kg.