The floodlights can be divided into four types: rotational symmetry, two symmetrical planes, one symmetrical plane shape and asymmetrical shape according to the symmetry of the intensity distribution of the exiting beams. 1. Rotational symmetry. The luminaire employs a rotationally symmetric reflector and mounts the axis of symmetry of the source with a rotationally symmetric light distribution along the axis of the reflector. The iso-intensity curves of such lamps are concentric. In this type of spotlight, when the single lamp is illuminated, an illuminating spot is obtained on the illuminated surface, and the illuminance is not uniform; however, when the multi-lamp is illuminated, the spots are superimposed on each other to produce a satisfactory illumination effect. For example, hundreds of rotating symmetrical spotlights are commonly used in stadiums and installed on high towers around the stadium to achieve high illumination and high uniformity. 2. Two symmetrical plane shapes. The iso-intensity curve of this type of floodlight has two planes of symmetry. Most of the luminaires use a symmetrical cylindrical reflector and the linear light source is mounted along the cylinder axis. 3. A symmetrical plane shape. The equal intensity curve of the luminaire has only one symmetry plane (Fig. 2). The luminaire uses an asymmetric cylindrical reflector or a symmetrical cylindrical reflector plus a grid that limits light. The most typical is the sharp cut-off block retracting light distribution. Such a light intensity distribution single lamp can obtain a satisfactory illumination distribution. 4. Asymmetrical shape. The iso-intensity curves of such lamps do not have a plane of symmetry. Mainly used for mixed light fixtures with different types of light sources with different light intensity distributions and special lamps designed according to the specific lighting requirements of the place of use. Application range: LED floodlights are mainly used in single buildings, exterior wall lighting of historical buildings, light outside the building, indoor lighting, green landscape lighting, billboard lighting, medical culture and other special facilities lighting, bars, dance halls and other entertainment venues. Ambient lighting. Precautions: High-purity aluminum reflector, the most accurate beam, the best reflection effect, symmetrical narrow angle, wide angle and asymmetric light distribution system, open-type replacement bulb behind, easy maintenance lamps are equipped with scale plates to adjust the illumination angle Plastic Film Faced Plywood With Hardwood Core LINYI JIUHENG IMPORT AND EXPORT CO.,LTD , https://www.jiuhengwood.com