PURPOSE: To reduce the weight and to attain ease of use by removing a battery case from the video camera, fitting one side of a leg of an illumination light to a mount of the battery case and mounting the battery case to the other side of the leg.

CONSTITUTION: A battery case 3 is removed from the video camera 1. The front side of a leg 12 of an illumination light 2 is directed to a rear side of the camera 1 and the light 2 is moved laterally. A lock projection 7 pressed by part of the light 2 and pushed into the camera 1 and an electric terminal 8 are fitted respectively into a lock hole 20 and a terminal receptacle hole 21. Moreover, in this state, a mount claw 6 of the camera 1 and a mount claw 19 of the light 2 are engaged with each other and the light 2 is mounted to the camera 1. Furthermore, the two electric terminals 8 are in contact with a metallic plate 22 in the terminal receptacle hole 21 to connect electrically the camera 1 and a connection part 17 of the light 2. Then the case 3 is fitted to the rear side of the leg 12 of the light 2. The front side of the case 3 is directed to the rear side of the leg 12 of the light 2 and the case 3 is moved for mount and then the light 2 and the case 3 are electrically connected.