Tio switches

Tio by Tim Holley is an award winning light switch system to help children save energy.

Tio is a wall mounted switch that glows green if the energy consumption meter is not going high with the wastage of electricity when not in use. When the household lights are on for short time, Tio is green and smiling but turns red when the lights are used for a longer period of time. Pretty nice idea of letting kids go green. [via]