A floodlight is a luminaire that specifies that the illuminance on the illuminated surface is higher than the surrounding environment. Also known as spotlight. Usually, it is able to aim in any direction and has a structure that is not affected by climatic conditions. It is mainly used in large area mines, building profiles, stadiums, overpasses, monuments, parks and flower beds. Therefore, almost all large area lighting lamps used outdoors can be regarded as floodlights. The Angle of the beam of the cast light is wide and narrow, and the range of change is between 0° and 180°, of which the beam is particularly narrow, called the searchlight.

The floodlight can be installed individually, or it can be combined with multiple lights to be installed on a pole above 20m to form a high-pole lighting device. In addition to the features of beautiful appearance, centralized maintenance, reducing light poles and occupying area, the advantage of this device is that the lighting function is strong. When the light is projected from a height, the spatial brightness of the environment is high, and the light coverage is large, giving people a feeling similar to the day, so there is a high lighting quality and visual effects.

In order to meet the minimum safety performance requirements for outdoor use, the housing protection level of the floodlight should be IP×3 (open). In order to improve the durability of lamps and reduce the maintenance workload, people are paying more and more attention to the development of closed floodlights with higher one-time investment costs, and their shell protection level is IP55.

In order to further improve the light output ratio of the luminaire, the reflector tends to adopt the block reflector which is conducive to reducing the light block of the light source and the multi-focus reflector which meets the special lighting requirements. The surface treatment of the reflective surface tends to adopt new materials and new processes to obtain a reflection ratio of more than 96%.