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

Save the light / saving box

The light is turned on automatically by sensor on the side.
The user put coins, the sensor weigh the coins and the light is getting more bright in proportion to its weight. Once the user put coins, the light lasts for 10 seconds.
And also, the users know how much they close to their plans through the brightness of the light. If the light is not bright enough, it motivate user to save more money .
Furthermore, users can draw anything they want to buy and put it in the front of the saving box. In addition, people can use it as a lighting in the evening as well.

From now on, let's saving light of your wishes!


Sangmyung University

Sangmyung university
seoul, South Korea

Ji-hyeon Choi

Go to profile

Sangmyung University

Sangmyung university
seoul, South Korea

Soon-mo Kang

Go to profile