Eco gadgets that don’t require batteries usually have a solar panel in them. Or maybe they require you to crank a handle to juice it up. Well, the BunBun Eco Light has neither. Instead, you just have to twirl it around for about 30 seconds.
All of that kinetic energy will juice the battery and give you 5 minutes of light using a trio of LEDs. You would probably be twirling something anyway, like your keys. The BunBun Eco Light should arrive this month for around $22 in pink, green, purple and black colors.