The dream, in which you see the bulb, denotes to new ideas, wisdom, knowledge and potentiality. The dream also indicates the development of certain things in your life that you were working on. The bulb could also mean that there is a possibility of getting pregnant as the bulb is often associated with the womb.
Dream dictionary: Bulb dream meanings
The light bulb indicates some idea you were working on in the past and only now found out the solution to this question. Perhaps the subconscious mind of yours already know what to do in particular situation.
If it is lit, it portends family joy. If it has weak power, it indicates family relationships are fragile. If it is off, emotional misunderstanding. Breaking it, financial losses. Putting one indicates the start a new project.
…(Sandglass) In a dream, the two bulbs of a sandglass represent two sons, or two brothers, or two partners. Whatever happens to them in the dream will reflect in such people. An hourglass in a dream also means makeup, beauty, or marriage. The sand trickling from the upper bulb into the lower bulb in a dream represents man’s semen….