The basic set comprises 5 crosses made from matte black injected polycarbonate which are backlit by LEDs and clipped into a double L-shaped matte black lacquered steel wall frame. Each set may be used on its own, or may be combined with up to 6 others. Dimensions of a single cross: H 9 W 9 D 2.5 cm. Each additional set may be connected to any cross already installed. The possibilities for creating installations become limitless. Each cross turns 45°: a turn to the left will switch off the current, while a turn to the right will let it continue. Because of this flexibility, a multitude of light trails may be created. Each set of 5 crosses is equipped with LEDs totaling 10W, giving off a total of 780 lumens (the equivalent of a 65W incandescent bulb). Color temperature: 3,000 K (warm white). 2.5 m black cable. The first cross serves as a general on-off switch.