 More than 6,000 observations were taken, from stations both on and offshore, and it was concluded that electric light was the most powerful under all conditions.In 1898 South Foreland Lighthouse was used by Guglielmo Marconi during his work on radio waves, receiving the first ship-to-shore message from the East Goodwin lightship on Christmas Eve that year.The system was used over the following winter to avert several shipwrecks.