Whether you have a kid, or you’re tired of encountering your darkened hallway walls at midnight, or you simply like the ambience of soft lighting and you don’t want to leave a beacon burning all through the night… an energy-saving night light is a must have.
It’s true that you can get a perky nocturnal hamster and make a hamster-powered night light, but a somewhat simpler project with equally impressive results is a self-crafted Sun Jar…
Invented by Tobias Wong, the Sun Jar is essentially a Mason jar containing a solar cell, a rechargeable battery, and an energy-saving LED lamp. Placed in a sunlit area by day, the solar cell inside the Sun Jar charges the battery with solar energy and uses that energy at night to power the LED lamp.
Continue reading: Make Your Own Solar-Collector Night Lights