The junction box should be installed on a flat surface. Outdoor application requires waterproof rubber. The installation surface must be capable of supporting at least 3 times the total weight of the camera and the mounting bracket. Environmental data: Maximum load capacity of the junction box: 4.5 kg Product basic info: Colour: White Additional colour: Black Diameter: 137 mm Height: 42 mm Material: Aluminium alloy Weight: 280 g (EN)