The phrase "a flash bulb" is correct and usable in written English.
It can be used when referring to a device that produces a brief burst of light, typically used in photography.
Example: "The photographer replaced the burnt-out flash bulb before the next shoot."
Alternatives: "a flash lamp" or "a flash unit".
Got his shot on a February night and suddenly, incredibly, his world became a flash bulb.
The White House photographer says that all the Republican candidates grin more or less automatically at the sight of a flash bulb.
Then they rounded up some hat-check and cigarette girls who were at liberty and taught them how to focus a camera and set off a flash bulb.
When an unsuspecting beast would duff the line, the camera's shutter and a flash bulb would go off, creating what might today be called an animal selfie.
Here he poses mischievously as himself in a police van with his 4x5 Speed Graphic camera and flash, using the one technical trick he had ever bothered to learn – a flash bulb to capture his subject against a dark background.
The first cameras to capture wildlife free from human presence were used in the late 1890s by photographic pioneer George Shiras, who employed trip wires and a flash bulb to catch animals on film; the photos were eventually published in National Geographic magazine.
The onslaught hurtles right to left, implying the murderous events to come but fixed in a flash-bulb moment – and on the very edge is Caravaggio himself, holding up a lantern to light both his picture and the biblical scene.
I felt like an exploded flash bulb without the will to live or die.
TMZ's open-air vans and snarky guides popped up here last year and have become hotter than a paparazzo's flash bulb.
and I moved my hands like lightning and the lights in the room blew out like a photographic camera flash bulb and she said, "YES" and ran out.
The La Sardina features a very large flash bulb which helps get great photos at night, and it also comes with a double exposure so you can overlay images and get all arty n' shit.
