CONSPIRACY theorists believe they have found "proof" the ancient Egyptians used technology from the future - thanks to hieroglyphs showing "light bulbs."

Truthers even say an "absence of soot" inside the country's pyramids and temples is more evidence they were never lit by traditional fires.

Their wild theories are based 4,000-year-old wall carvings inside the Temple of Dendera which they say "show" Egyptians using what they believe is electricity.

Some even say the use of the modern power source - "passed to them by time travellers or aliens" - is the reason why the artists were able to produce the hieroglyphs in the first place.

The single-minded theorists say although flame torches are convenient, they need an opening for the smoke to escape and keep people from suffocating to death.

Many crevices in pyramids and other ancient buildings do not have this opening, so the hieroglyphs there would have to be drawn with a different light source illuminating the walls.