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

Time Switch / Switch

Time Switch
Time Switch

“Time switch” is an eco-friendly and convenient switch. It applies the principle of clockwork to control the time when the light will be turn off. Draw the ring-pull to certain length (depend on user’s need)-the longer the length, the longer period of time the light is on. Therefore, this product not only achieves the purpose of energy-saving, but also makes people use the switches more flexibly, and creates a better life!


National Cheng Kung University

National Cheng Kung University
industrial design
Taipei, Taiwan

Ding-Bang Luh,Chyun-Chau Lin,Tin Man Lau


National Cheng Kung University

National Cheng Kung University
department of Industrial design
Taipei, Taiwan

Cheng-Hsiu Du