Black lacquered brass wall light Cubic³ with clear lines If you love something special, the rectangular Cubic³ wall light is just the thing for you. Made from robust brass, the light's black finish makes it suitable for numerous furnishing styles. The socket mounted in the centre of the frame accepts all types of E27 bulbs. However, as the view of the inserted bulb remains unobstructed, it is advisable to use a decorative bulb, such as a filament or rustic bulb.