# Wireless data from every light bulb

- Institution: TED
- Department: TEDGlobal 2011
- Speaker: Harald Haas
- Year: 2011
- Level: For everyone
- Language: English
- Source: [TED](https://www.ted.com/talks/harald_haas_wireless_data_from_every_light_bulb)
- Licence: [CC BY-NC-ND 4.0](https://creativecommons.org/licenses/by-nc-nd/4.0/) (Non-commercial use only, and no changed versions.)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

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.

## Lectures

1. [Wireless data from every light bulb](https://invisiblenetwork.ai/learn/ted/harald_haas_wireless_data_from_every_light_bulb/d6d5f89886df), 13 min (TED's player)