# Harald Haas: Wireless data from every light bulb

What if every light bulb in the world could also transmit data? At TEDGlobal, Harald Haas demonstrates, for the first time, a device that could do exactly that. By flickering the light from a single LED, a change too quick for the human eye to detect, he can transmit far more data than a cellular tower -- and do it in a way that's more efficient, secure and widespread.

- Kind: Talk
- Year: 2011
- Runtime: 12 min
- By: TED.com
- Genres: Education, Science
- Archive: [Internet Archive](https://archive.org/details/HaraldHaas_2011G)
- Licence or status: [CC BY-NC-ND 3.0](http://creativecommons.org/licenses/by-nc-nd/3.0/) (as the archive states it)
- Who can watch: Tweens profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

[Watch now](https://invisiblenetwork.ai/watch/archive/ia/HaraldHaas_2011G?play=1)