1. The intermittent dimming and brightening of a light bulb may be indicative of an issue within the electrical circuit.
2. Poor connections at the wiring junctions can result in increased resistance.
3. Increased resistance leads to more heat generation from the current flow.
4. This additional heat can cause the resistance at the contact points to rise further.
5. The accumulation of electrical heat can potentially lead to fire hazards.
6. Excessive current flow often occurs during peak hours when multiple lights are turned on.
7. During peak usage, the increased load reduces the total resistance in the circuit.
8. With higher current, there is more energy loss along the transmission lines.
9. The voltage across the home circuit decreases, reducing the actual power of the light bulb, hence appearing dimmer.
10. At night, when fewer users are consuming electricity, the current in the main line decreases.
11. The energy loss along the line is reduced, resulting in a higher relative voltage across the home circuit.
12. As a result, the actual power of the light bulb increases, making it appear brighter.
13. If this issue is isolated to a single room, inspect the wiring connections for proper contact.
14. Check if the ballast is aging or of poor quality, and if it is highly affected by humidity changes.
15. If non-standard connection methods are found, reconnect according to the standard procedures.
16. Voltage fluctuations are often caused by rapid changes in load for large electrical appliances.
17. Measures to suppress voltage fluctuations include increasing power supply capacity and improving voltage levels in the power supply system.

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