Bullet security cameras are a type video surveillance camera that are typically small and shaped like a rifle bullet shell or lipstick case. Smaller bullet cameras are typically the diameter of a cigar, but they are shorter. Sometimes they are referred to as lipstick cameras. Bullet cameras can easily mount to ceilings or walls because most of them use a tri-axis type of mount. Not all bullet camera are small. Infrared bullet cameras tend to be larger in diameter to accommodate the additional space that their IR LEDs require