Floodlights are lamps that specify that the illuminance on the illuminated surface is higher than that of the surrounding environment. Also called spotlight. In general, it is capable of aiming in any direction and has a structure that is not affected by climatic conditions. Mainly used for large-area operation field mines, building outlines, stadiums, overpasses, monuments, parks and flower beds, etc. Therefore, almost all large-area lighting fixtures used outdoors can be regarded as floodlights. The beam angle of the spotlight is wide or narrow, and the variation range is between 0° and 180°. The beam with a particularly narrow beam is called a searchlight.
Basic Information
| Light source composition | CREE high-power LED (customized color temperature) |
| Beam divergence angle | 5-120° (can be customized) 5° angle is searchlight, can hit more than 200 meters |
| Lifespan | ≥30000 hours |
| Housing | Metal die-cast |
| Cover material | High-definition transparent tempered glass |
| Size | 560mm×300mm |
| Input voltage | AC100V-220V |
| Voltage regulation range | AC130-264V |
| Power | 10W-400W (can be customized) |
| Ambient temperature | -40℃–+50℃ |
| Humidity range | 0–95% |
| Protection grade | IP65 |
| Application | Construction sites, aerial work vehicles, squares, parks, art venues, factories, gymnasiums, golf courses, shops, subway platforms, gas stations, buildings, sculptures, green lighting and other places and other places lighting decoration. |
Product Features
Under low current, the temperature rise of LED floodlights is not obvious. If the ambient temperature is high, the dominant wavelength of the LED floodlight will be red-shifted, the brightness will decrease, and the uniformity and consistency of the light emission will become worse. In particular, the temperature rise of dot matrix and large display screens has a more significant impact on the reliability and stability of LED floodlights. So the heat dissipation design is very important.
Floodlights illuminate objects evenly in all directions from a specific point, and it’s a perfect analogy to light bulbs and candles. Omnilights can be placed anywhere in the scene. For example, it can be placed outside the camera range, or inside an object. It is common to use many floodlights of different colors at a distance in a scene. These floodlights can cast and blend shadows on the model. Due to the large illumination range of the floodlight, the illumination effect of the floodlight is very easy to predict, and this kind of light has many auxiliary uses. For example, if the floodlight is placed close to the surface of the object, it will be produces bright light.
Technical parameter
The following is an example of a 30W floodlight:
Appearance structure: The shell is made of aluminum alloy in one time, and the surface is treated with anti-oxidation and anti-corrosion.
- Luminous flux: 3000-3300Lm
- Working voltage: AC 85-265V
- The internal use of constant current module, constant current output 930mA, voltage 32V.
- Beam: (at 6 meters) beam diameter is 3.3 meters
- Illumination: (6 meters) is 40 LUX
- Light source service life: more than 50,000 hours
- Circuit service life: guaranteed for more than 3 years
- Material: Green environmental protection high pressure die-casting aluminum alloy lamp housing
- Dustproof and waterproof grade: IP65~IP68
- Efficiency>90%
Working principle
Floodlights are the most widely used light sources in rendering production, and standard floodlights are used to illuminate the entire scene. Multiple floodlights can be applied to the scene to produce better results. Floodlights are the most widely used light sources in renderings. Multiple floodlights can be used to coordinate in the scene to produce better effects.
Place of use
Hotel exterior wall, square night view, garden lighting, interior decoration, outdoor floodlight
Features of LED floodlights
What is LED floodlight? It is mainly used for architectural decorative lighting and commercial space lighting. The decorative components are heavier, and its appearance is round or square, because generally the reasons for heat dissipation must be considered. , so its shape is still somewhat different from the traditional floodlight.
LED floodlights are actually composed of LED light cups. It has some features of its own.
- High-purity aluminum reflector, the most accurate beam, the best reflection effect.
- Symmetrical narrow-angle, wide-angle and asymmetric light distribution systems.
- The light bulb can be replaced by the back opening type, which is easy to maintain.
- The lamps are equipped with scale plates for easy adjustment of the illumination angle.
The LED flood light is controlled by the built-in microchip. In small engineering applications, it can be used without a controller, and can realize dynamic effects such as gradient, jump, color flashing, random flashing, and gradient alternation. It can also be controlled by DMX. Realize the effect of chasing, scanning and so on. Its main application places are probably as follows: single building, exterior wall lighting of historical buildings, building interior and exterior lighting, indoor local lighting, green landscape lighting, billboard lighting, medical and cultural and other specialized facilities lighting, bars, dance halls, etc. Atmosphere lighting in entertainment venues, etc.
Classification
Rotational symmetry
The luminaire adopts a rotationally symmetric reflector, and the axis of symmetry of the light source with rotationally symmetric light distribution is installed along the axis of the reflector. The iso-intensity curves of such lamps are concentric circles. When this form of flood light is illuminated by a single lamp, an elliptical light spot is obtained on the illuminated surface, and the illumination is uneven; but when multi-light illumination is used, the light spots are superimposed on each other, which can produce a satisfactory lighting effect. For example, hundreds of rotationally symmetrical floodlights are commonly used in stadiums, which are installed on high towers around the stadium to obtain high illumination and high uniformity lighting effects.
Two symmetrical
The equal intensity curve of this type of floodlight has two symmetry planes. Most of the lamps use symmetrical cylindrical reflectors, and the linear light sources are installed along the axis of the cylindrical surface.
One symmetrical
The iso-intensity curve of a luminaire has only one plane of symmetry. The luminaire uses asymmetric cylindrical reflectors or symmetrical cylindrical reflectors plus grids that limit light. The most typical is the sharp cut-off block retraction light distribution. This kind of light intensity distribution single lamp can obtain a relatively satisfactory illuminance distribution.
Asymmetrical
The iso-intensity curve of this type of luminaire has no plane of symmetry. It mainly uses mixed light lamps of different types of light sources with large differences in light intensity distribution and special lamps designed according to the specific lighting requirements of the place of use.
Installation of floodlights
Floodlights can be installed and used individually, or multiple lights can be combined and installed on a pole of more than 20m to form a high-pole lighting device. In addition to the beautiful appearance, centralized maintenance, and reduction of light poles and floor space, the biggest advantage of this device is its strong lighting function. When the light is projected from a high place, the space brightness of the environment is high, and the light coverage is large, giving people a feeling similar to daytime, so it has higher lighting quality and visual effects.
In order to meet the minimum safety performance requirements for outdoor use, the enclosure protection level of the floodlight should be IP3 (open type). In order to improve the durability of lamps and reduce maintenance workload, people pay more and more attention to the development of closed-type floodlights with high one-time investment costs, and the enclosure protection level is IP55.
In order to further improve the light output ratio of lamps, the reflectors tend to use block plate reflectors that are conducive to reducing the light blocking of light sources and multi-focus reflectors that meet special lighting requirements; the surface treatment of the reflective surface tends to use new materials and new processes. to obtain a reflectance of over 96%.
In order to reduce the weight of lamps and reduce the consumption of metal materials, lamp housings will be developed in the direction of plastic housings with high temperature resistance, high mechanical strength and anti-aging.
LED flood light
What is LED flood light
LED flood lamp (LED project-light lamp), also known as spotlight, projection lamp, spotlight, etc., is mainly used for architectural decorative lighting, as well as commercial space lighting. There are also round and square, because generally have to consider the reasons for heat dissipation, so its shape is still somewhat different from the traditional flood light.
Characteristics of LED flood light
- The commonly used LED floodlights on the market are basically 1W high-power LEDs (each LED element will have a high-efficiency lens made of PMMA, and its main function is to redistribute the light emitted by the LED, that is, Secondary optics), and a few companies choose 3W or even higher power LEDs because of good heat dissipation technology. It is suitable for large-scale occasion lighting, building and other lighting.
- Symmetrical narrow-angle, wide-angle and asymmetric light distribution systems.
- The light bulb can be replaced by the back opening type, which is easy to maintain.
- The lamps are equipped with scale plates for easy adjustment of the illumination angle. Its main application places are probably as follows: single building, exterior wall lighting of historical buildings, building interior and exterior lighting, indoor local lighting, green landscape lighting, billboard lighting, medical and cultural and other specialized facilities lighting, bars, dance halls, etc. Atmosphere lighting in entertainment venues, etc.
Advantage
The flood light has bright colors, good monochromaticity, soft light, low power, long life, and luminous time of up to 50,000 hours. Moreover, its LED flood light is compact, easy to hide or install, not easy to be damaged, and has no heat radiation, which is beneficial to protect the illuminated object and has a wide range of applications. The lamps are equipped with scale plates to facilitate the adjustment of the illumination angle. The LED flood light is controlled by a built-in microchip. In small engineering applications, it can be used without a controller, and can achieve gradient, jump, color flashing, random flashing, and gradient alternation. And other dynamic effects, you can also achieve chase, scan and other effects through DMX control.
Application Scope and Precautions
1) Scope of application
LED floodlights are mainly used in single buildings, exterior wall lighting of historical buildings, building interior and exterior lighting, indoor local lighting, green landscape lighting, billboard lighting, medical and cultural lighting, bars, dance halls and other entertainment venues Mood lighting.
2) Precautions
High-purity aluminum reflector, the most accurate light beam, the best reflection effect, symmetrical narrow-angle, wide-angle and asymmetric light distribution system, rear opening type to replace the bulb, easy maintenance The lamps are equipped with a scale plate to facilitate the adjustment of the irradiation angle.
Reference: https://en.wikipedia.org/wiki/Floodlight
