A common misconception is that the watt-second measurement is an indication of light output.
From the en.wikipedia.org
The watt second is a unit of energy, equal to the joule.
From the en.wikipedia.org
The watt-second is used, for example, to rate the energy storage of flash lamps used in photography.
From the en.wikipedia.org
The price of panels fell to $1.90 per watt by the second quarter of this year.
From the bloomberg.com
Watt was a second-team All-American and was selected to the All-Big Ten first team this season.
From the newsday.com
Next to be affected is the SI unit of power, the watt, which is one joule per second.
From the en.wikipedia.org
Watt has 69 tackles, second on the team.
From the orlandosentinel.com
For rowers and their coaches, an ergometer workout measures ability down to the second and the watt.
From the sacbee.com
The benchmark price of crystalline silicon panels rose to a record $4.13 per watt in the second quarter of 2008, according to BNEF, a 28 percent increase from the same period in 2004.