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.
The lampcan absorb solar energy when it flats, and can become lamp or flashlight when it roll up.
south china agricultural university
GUANGZHOU, China
jinbo li,
south china agricultural university