Osram has come up with a clever campaign to advertise its energy-saving lamps. With its eco-friendly message of using electricity only when it’s required, select bus stops in Cape Town that feature the ad remain dark at night when there are no passengers waiting. Triggered by sensors, as soon as someone walks into to the stop, the lights flicker on and reveal the ad. Killing two birds with one stone, Osram brilliantly displays the need to conserve while using its light bulbs.

Source Adland302837