Surface-mounted twilight switch for automatic switching of lighting, integrated day timer with various switching options, potential-free relay contact, setting of the light value from the outside, LED setting aid (delay-free), switch-on and switch-off delay, double cable entry from below or through the rear wall of the housing possible, large connection space, suitable for wall and inside corner mounting, captive stainless steel screws, housing made of impact-resistant, UV-stabilized polycarbonate