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.
It was known as Ostar Lighting, and it supplied 200 lumens. This literally put neon lamps and incandescent light bulbs in the shade. Prior to this, the brightest LED from the company had a still-impressive 120 lumens. This brightness means that Ostar Lighting can compete well with conventional lamps. It's not just the brightness that's impressive, either.