watt seconds in a sentence

1. The watt second is a unit of energy, equal to the joule.
2. One kilowatt hour is 3 600 000 watt seconds.
3. The Stroboflash II had a constant 100 watt second light output that was not adjustable.
4. It put out 200 watt seconds of light power, but could not be turned down.
5. A joule is a measurement of energy or heat required to sustain one watt for one second, known as a watt second.
6. It's difficult to find watt seconds in a sentence.
7. The watt second is used, for example, to rate the energy storage of flash lamps used in photography, although the term " joule " is generally employed.
8. There were four models of Stroboflash, aptly designated as Stroboflash I, Stroboflash II, Stroboflash III and Stroboflash IV . The Stroboflash I used two 240 volt dry cell batteries that are no longer made and was the lightest of the four models and produced 50 watt seconds of light power.
9. It was replaced by the Stroboflash IV that had four power setting that could be selected via a rotary top mounted switch : 1 / 4 ( 50 watt seconds ), 1 / 2 ( 100 watt seconds ), 3 / 4 ( 150 watt seconds ) and full ( 200 watt seconds ).
10. It was replaced by the Stroboflash IV that had four power setting that could be selected via a rotary top mounted switch : 1 / 4 ( 50 watt seconds ), 1 / 2 ( 100 watt seconds ), 3 / 4 ( 150 watt seconds ) and full ( 200 watt seconds ).
11. It was replaced by the Stroboflash IV that had four power setting that could be selected via a rotary top mounted switch : 1 / 4 ( 50 watt seconds ), 1 / 2 ( 100 watt seconds ), 3 / 4 ( 150 watt seconds ) and full ( 200 watt seconds ).
12. It was replaced by the Stroboflash IV that had four power setting that could be selected via a rotary top mounted switch : 1 / 4 ( 50 watt seconds ), 1 / 2 ( 100 watt seconds ), 3 / 4 ( 150 watt seconds ) and full ( 200 watt seconds ).