Runs continuously on any kind of light (sunlight or artificial) for a lifetime of use. Fueled by light, it never needs a battery.
Entry is really easy too: leave a comment giving one easy tip that helps the environment and is quick to do.
I know you all have quick and easy tips to share!
I must warn you though, I entered to win too and right now I am on a role at winning giveaways :-)
Good Luck!
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