Answer:
Flash
Explanation:
On-Camera Flash versus Off-Camera Flash versus In-Camera Flash
The term on-camera flash simply refers to a type of strobe light (flash) that can connect directly with your camera. While it is referred to as "on-camera" this does not require the flash to be physically mounted on your camera. On-camera flashes can, and often are, used off-camera. This differs from other strobe-light sources, such as studio pack strobes and monolights in that these types of strobes are not meant to be physically connected to your camera (except under rare and unusual circumstances involving convoluted methods of adaptation). Additionally, on-camera flashes usually have a self-contained power supply, although external power sources can sometimes be used to improve performance or battery life.
