The Watt-lite is delivered as a set of three and has the appearance of oversized torches. The size of the light beams projected from the torches indicates electricity consumption and expands and contracts depending on the electricity usage.
The dark grey Watt-lite is a real-time electricity meter. If the light beam is small, the electricity consumption is low, if the light beam is large the electricity consumption is high.
The two light grey Watt-lites are used as reference points displaying maximum and minimum electricity usage during the day. The Watt-lite projecting a blue light beam displays the smallest amount of electricity used during the day. The orange light beam displays the highest amount of electricity used during the day.
Watt-lite also includes a web service developed as a user-friendly, simple and aesthetically pleasing interface where the owners of the watt-lite can view historic consumption.
The project is a cooperation between Interactive Institute, Eskilstuna Energi och Miljö and Eskilstuna Kommun and is funded by Energimyndigheten.