The working principle of floodlights is mainly based on the process of converting electrical energy into light energy. Specifically, electrical energy is supplied to the bulb through the power supply, and the filament (usually a tungsten filament) inside the bulb heats up and emits light under the action of the electric current. The color and brightness of the light emitted by the filament depends on its material and temperature. Since the bulb generates a lot of heat during operation, floodlights usually need to be designed for heat dissipation in order to ensure the normal operation and prolong the service life of the bulb. In addition, floodlights are equipped with a control system for adjusting the lamp's brightness, color, light angle and other parameters to meet the lighting needs of different scenes.

Projection lamp is through the optical principle of the image or light projected onto the wall, ceiling or other flat surface of a lamp. Compared with traditional lighting equipment, the biggest feature of the projection lamp is that it can create a rich variety of visual effects, from simple patterns to complex dynamic scenes, and even interactive light and shadow experience, all show its unique charm as a “light and shadow magician”.