Meaning and Usage
蛍光灯 (けいこうとう) refers specifically to fluorescent lamps, a common type of lighting used in homes, offices, and public spaces in Japan. It is a compound word combining 蛍光 (fluorescence) and 灯 (lamp/light).
Common Contexts
蛍光灯 is often mentioned when discussing lighting conditions, replacing bulbs, or energy efficiency. It is a neutral, everyday term used in both casual and formal contexts.
Collocations and Patterns
- 蛍光灯が切れる: when the fluorescent lamp burns out or stops working.
- 蛍光灯を交換する: to replace the fluorescent lamp.
- 蛍光灯の光: the light emitted by the fluorescent lamp.
- 省エネ蛍光灯: energy-saving fluorescent lamp.
Usage Notes
蛍光灯 is distinct from 電球 (でんきゅう, incandescent bulb) and LEDライト (LED light). Learners sometimes confuse 蛍光灯 with other types of lighting, so it’s important to remember it specifically means fluorescent lamp. When talking about lighting in a room or office, 蛍光灯 is the standard term for this type of lamp.
Register and Politeness
蛍光灯 is a neutral noun and can be used in any register without formality concerns. It appears frequently in technical, household, and office-related conversations.