Fantastic lighting effect with the wall lamp Tereza with a peekaboo design Tereza’s body has a semi-circular shape and has small holes all over. This breaks up the appearance of the wall lamp in an an attractive way, but this is not the sole purpose of the peekaboo pattern, as this design also gives the lighting effect a special effect because you can see many, many points of light in the room. The G9 bulbs with LED technology are energy-efficient and it is also possible to adjust their brightness using a dimmer.