Designed by Beverly Ng, the solar-powered LED Spark Lamp was designed in response to the Swedish government's plan to install smart meters in new homes to track energy consumption. It aims to inform homeowners of their daily energy use visually, in an engaging, yet simple way.

During the day, you turn the lamp upside down on a windowsill to recharge the solar panels. At night, when you turn the lamp upright and switch it on, the lamp (equipped with Wi-Fi) flickers in different colours to signal your homes power consumption level for the month compared to your goal.

The lamp pulses for about three seconds, displaying green if you are doing better than your goal, yellow if you are on target, and red if you are using too much power. Then the lamp returns to a regular white light lamp [1].

via Inhabitat

For more information about the Spark Lamp visit: http://inhabitat.com/solar-spark-lamp-by-beverly-ng/