A construction project, for example, is often governed by a guaranteed maximum price contract (GMP) . This type of legal agreement sets a ceiling or maximum price for which a person or entity will pay for a certain project.
The arc lamp used in the Lighthouse of Alexandria is further proof that electricity was used in ancient Egypt. The energy required to power the Lighthouse of Alexandria for 24 hours a day could only have been supplied by a regular electrical source.
Very Little Power Used. Most night lights use either a small incandescent light bulb or LEDs as their light source. A major benefit of an LED night light is that they use very little power (less than 1 watt) and are long-lasting. An incandescent night light usually consumes about 5 watts of power.