Indirectly shining wall light Teos as a slanted rectangle The Teos light appears to be sunk into the wall. Designer Marco Spatti achieves this illusion with a rectangular basic shape whose short sides are of different lengths, giving the object an oblique position. The G9 bulbs used are not visible from the room and create an indirect light. The plaster moulded wall light can be painted in the preferred colour if required to create either a harmonious or contrasting effect.