fluorescent lamp; fluorescent light
Standard term for a fluorescent light fixture or tube.
The fluorescent light in the office burned out, so I replaced it.
slow person; someone slow on the uptake
Dated slang comparing a person's slow reaction to the flickering or delayed start of old fluorescent lights.
He doesn't get the joke; he's like a fluorescent light (slow to react).
I entered the room and turned on the fluorescent light.
I turned off the fluorescent light before going to bed.
The fluorescent light in the kitchen burned out, so I bought a new one.
I replaced the old fluorescent tube.
蛍光灯 names a specific type of light—the fluorescent tube—while 電灯 is the general term covering any kind of electric light.