Lighting Products and Lighting Projects Design 15 degree Interaction Lamp by Chen Yizhou Playing with people’s inherent desire for order and balance are the types of human condition that 15° is trying to explore. The form moves away from a two-dimensional graphic to a sculptural, and pleasing form. My inspiration comes from asymmetry. The asymmetry is not just defined by its physical presence. Therefore the essence of asymmetry could be balanced. The balanced form also creates asymmetry. It is the condensation of stories of the encounter with the place.