Kind of bulb to work like lightning (5)
I believe the answer is:
flash
This might be a double definition.
'kind of bulb' is the first definition.
(I've seen this in another clue)
'lightning' is the second definition.
(thesaurus)
'to work like' acts as a link.
This may not be right. Some or all of it may belong to one of the definitions.
Can you help me to learn more?
(Other definitions for flash that I've seen before include "Gaudy" , "emblem on uniform" , "short space of time" , "Coruscate, second" , "Sudden gleam of light" .)