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.
This light is combined detachable handle and shining LED.
At night, many dangerous bicycle accident happened by people coming the other side.
KOREA POLYTECHNIC UNIVERSITY
Gyeonggi-Do, South Korea
KOREA POLYTECHNIC UNIVERSITY
Gyeonggi-Do, South Korea
Lee Su Chul