Unsupported browser

You are using an outdated browser. Please upgrade your browser to improve your experience.

Sign up for an Award

Participate with your entry in one of our professional or student awards.

Sign up for an award

Sign up for a Profile

Create your own profile and publish it in the iF WORLD DESIGN GUIDE.

Sign up for a profile

Learn more:


Present your project for free and win your share of EUR 50,000 in prize money.

Publish your project

Land Navigation / mainhole cover lamp

Land Navigation

On stormy days, the sight of passers-by would be obstructed by the deep seeper and the loss of manhole covers could endanger the lives of passers-by. LAND NAVIGATION is a manhole cover warning lamp, which used for warning passers-by of the danger from loss of manhole covers.
LAND NAVIGATION is supplied by primary cell when it works. Once the manhole cover is away from its original position, rainwater will rush into the filtrate tank, the primary cell will go to work, and as a result, the lamp will began to light.


Southeast University

Southeast University
Nanjing, China