Take National Geographic's Personal Energy Meter TestThe meter measures your personal energy score based on the decisions you make in your home and in travel. See how you measure up against others, and how choices you make at home and in the way you travel could help to protect the atmosphere.
At free-light, we're a little biased... we believe everyone should be lighting up their outdoors at night with clean (free) energy from the sun! Take the test. Browse the free-light catalogue of quality solar lights today.