LED floodlight uses floodlighting way to make building facade lights up, is one of the important ways to create and beautify the city night . This way not only to illuminate lighting facade of the building, while carefully designed by the lighting designer , the temptation can be to create a more touching than the daytime effects , structured, emphasize and highlight the building 's personality. LED floodlight is uniform in all directions can be a point source of illumination , and its illuminated area can be adjusted , the performance of a regular octahedron illustrated in the scene .
　　But floodlights lighting is just one of the ways the building, is by no means unique, never filed facade lighting on non-white illumination Ming Mo genus, facade lighting is not equal floodlighting . Using floodlighting buildings should have the following two conditions : the first is : the illuminated buildings should have a certain surface reflectance . Floodlighting is through Spotlights illuminated the light on the surface of the building , and through its reflection , one sees from the surface brightness of the viewing direction . The second is : the illuminated building surface reflectance properties are preferably diffuse, diffuse reflection must also be at least , to have a certain variety of surfaces reflect light , reflecting varying degrees because of the smooth surface of different conditions can be broadly divided into directional reflection , diffuse reflection and diffuse reflection of three.
　　Low current , LED floodlights temperature is not obvious . If the ambient temperature is high , LED floodlights dominant wavelength will redshift , brightness will decline , light uniformity , consistency worse. In particular, lattice , reliability , temperature stability of large screen LED floodlights for more significant . So thermal design is critical. Floodlights from a specific point uniformly illuminated objects in all directions , using it to simulate the light bulbs and candles better and better. Floodlights can be placed anywhere in the scene . For example , the camera can be placed outside of the range , or internal objects. In the scene in the distance using many different colors floodlight is very common. The floodlights can be dark and mixed projected on the model. Floodlights illuminated area is relatively large, so the illumination is very easy to predict the effect of floodlights , and this light there are many secondary uses, such as the floodlights placed in a position close to the surface , then the surface generated on a bright light.
　　LED floodlight color temperature flexibility to choose between the 4000-7000K, most imaging index of 80 or more , lamp luminous color closer to natural light. High efficiency LED lamps light emitting angle of approximately 90% LED light-emitting diode lighting angle can be consistent with , and therefore most of the light fixtures direct exposure to a specific area , only a small part, through reflection , and therefore high efficiency light source . LED lights do not exist startup delay problem , they can always turn , for work , can be very easy to achieve intelligent energy-saving control .