Now you can deter robbery, theft, and vandalism without the high cost of a real security camera. When placed in your home or business, even the most sophisticated criminals will think the premise is guarded by a high-tech surveillance system and go in search of an easier target. In fact, these surveillance cameras have been modified into a "dummy" or fake security camera. This unit does contain a continuous flashing light. The camera features a fully adjustable mounting bracket that will let you install the camera quickly and easily using the included stainless steel screws. The camera requires 2 AA batteries that are not included. Dimensions : (refer to picture with dimensions) The conversions are as follows: 94mm = 3.75 inches, 100mm = 4 inches, 56mm = 2.25 inches, 152mm = 6 inches, 130mm = 5 inches.