No Presence Green - 2003 neon tubes, sensor, transformers Ø 70,10 cm / Ø 27 1/2 in Photo: Holger Hübsch. The work 'No Presence Green' is a spherical light object constructed of yellow neon tubes in various patterns connected with a motion sensor and hanging from the ceiling as a lamp in room. The object seems to refuse the viewer access to it as entering the room to encounter the work will make the light turn off.