Dometic Micro Heki 280 x 280mm ROOF WINDOW WITH FLYSCREEN AND FORCED VENTILATION This ultra-compact roof light was specially designed for the bathroom area. It fits into a roof opening of 280 x 280 mm and can be opened and closed with a hand-lever system. For motorhomes and caravans. LONG AWAITED AND HERE AT LAST! A roof light for the bathroom! Designed for a roof opening of 280 x 280 mm, Micro Heki is the smallest roof light in the Dometic range. Its features, however, leave nothing to be desired. The elegant inner frame integrates a single pleated optional darkening blind and a fly screen, which can be adjusted separately as required. You can play with shade and light, let fresh air in and keep insects out and your smallest room on board will always be well ventilated, dry and neat.