Fact 1: Alight bulb converts electrical energy into light energy when it is turned on.

Fact 2: Light bulbs are rated in Watts.

Given the two facts above, answer the question "How is converted energy into light energy rated?" with the following options: 
- energy
 - unique
 - heat
 - good
 - watts
 - parsec
 - kilojoule
 - kinetic energy


 

     watts    