Sign up for an Award
Participate with your entry in one of our professional or student awards.
Sign up for an awardLearn more:
Unsupported browser
You are using an outdated browser. Please upgrade your browser to improve your experience.
ENERGY RINGS are placed in public places that people can frequently access to
waste collection box the battery, if you put the lung battery as collection rate
increases, and one by one LED light in the shape of a ring of rings of trees it comes
out. Know also the form of Collection rate in that light can be the role of such security is.
AAA and AA size batteries used the + another
part of the hole that is divided by size as the
size of the battery is put towards the hole.
Then, it is possible to illuminate the LED lighting
using a current remaining piled up an internal battery.
jeju national university
jeju city, South Korea
jinjoo park,
jeju national university