Tvilight is a streetlamp system that brightens in the presence of people , cars and people . New system will slash energy bills by 80 % in cities around the world . Europe spends $ 13 billion annually on fueling street lights . Source : ` ` ' ... you have this world of interactive art ''
Tvilight is a streetlamp system that brightens in the presence of people , cars and bicycles . New system could slash energy bills by 80 % in cities around the world . Europe spends $ 13 billion annually on fueling street lights . Artist : `` Imagine ... you have this boulevard of interactive lights ''