To see the floodlights in a dream symbolizes your wish for knowledge. Perhaps you are trying to be more open with the surrounding and wish to get more information about the world. If you see the floodlight that has been burnt out, then such dream shows the dark surroundings. You are unable to get the information you need.
Dream dictionary: Floodlights dream meanings
The floodlights shows that you wish to see things as clear as it is possible. You pay a lot of attention to one particular thing, person or situation that takes a lot of your free time. The floodlight that burns out signifies that you will be out of sight and wont know how to deal or escape the particular situation.