Small roof hatch with large light output. Cutout size: 40 x 40 cm brings a light incidence of 37 x 38 cm. Dome tinted gray, extremely break-resistant polycarbonate. Double glazed, aerodynamic shape. Large glass dome for bad weather position - large glass overhang. Convenient setting up of the dome by means of an operating handle, which is positively guided in guideways. 3 different positions: fully open, middle position and bad weather position. Closed position is automatically positively locked. Mounting: clamping principle, outer frame is put on and sealed. The inner frame is simply clipped in place. Inner frame with black pleated flyscreen and pleated blackout roller. Reflection of the sun's rays on the aluminum-coated surface of the blackout roller blind. Height above roof 105 mm. Max. Opening angle 50°.