The world's most powerful searchlight today beams from the top of the pyramid-shaped Luxor Hotel in Las Vegas. The beam concentrates about 13,650,000 lumens from 39 7 kW xenon lamps into its beam of about 9,129,000,000 candela. The brightness emanating from the Luxor lamp room is about twice that which emanates from an equal area of the sun's surface (about 95,000,000 cd/ft2 versus 45,000,000 cd/ft2).