Page Content 1. UT Extension serves the citizens of Fayette County with educational programs in the areas of Agriculture, Family and Consumer Sciences, Community Resource Development, and 4-H Youth Development.
A large globe light, like around a vanity mirror, that is rated at 25 watts consumes exactly the same amount of energy as a small refrigerator light bulb also rated at 25 watts..  Size as a power ratingThe wattage rating of a light bulb is directly proportional to energy consumed by that light bulb. A light bulb rated at 60 watts consumes 50% more energy than a 40 watt light bulb.
Quick Answer. A battery's power, or the electrical current that it can provide, is greatly reduced when the temperature drops. A typical car battery, for example, has about 50 percent of its starting power at 0 degrees Fahrenheit when compared with its operation at 80 degrees Fahrenheit. Keep Learning.