LED floodlight characteristics and installation

What is LED flood light

The LED flood light is a point light source that can illuminate evenly in all directions, and its illumination range can be adjusted arbitrarily. It is best to use it as an analogy to light bulbs and candles.

Floodlights 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 different colored floodlights in the scene at a distance. These floodlights can project and blend the darkness on the model. Because the floodlight has a relatively large illumination range, 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 on the surface of the object. It produces a bright light.

Under small current, the temperature rise of LED flood light 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 will be deteriorated. In particular, the temperature rise of dot matrix and large display has a more significant impact on the reliability and stability of LED floodlights. So the heat dissipation design is very important.

working principle

Floodlights are the most widely used light source in the production of renderings. Standard floodlights are used to illuminate the entire scene. Multiple floodlights can be used in the scene to produce better results. Floodlights are the most widely used light source in renderings. Multiple floodlights can be used in the scene to coordinate their effects to produce better results.

Applications

Hotel exterior wall, square night view, garden lighting, interior decoration, outdoor floodlight.

Features of LED flood light

What is LED flood light? It is mainly used for architectural decoration lighting and commercial space lighting. The decorative components are heavier, and the shape is round or square, because heat dissipation is generally considered. , So its appearance is still somewhat different from traditional floodlights.

LED floodlights are actually made up of LED lamp cups. He has some characteristics of his own.

1. High-purity aluminum reflector, the most accurate beam and the best reflection effect.
2. Symmetrical narrow-angle, wide-angle and asymmetric light distribution systems.
3. The light bulb can be replaced with an open-back type, easy to maintain.
4. The lamps are all attached with a scale plate to facilitate adjustment of the angle of illumination.

The LED floodlight is controlled by a built-in microchip. In small engineering applications, it can be used without a controller. It can achieve dynamic effects such as gradation, jump, color flashing, random flashing, and gradual alternation. It can also be controlled by DMX. Realize effects such as chasing and scanning. The main application places are probably these: single buildings, 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 facility lighting, bars, dance halls, etc. Atmosphere lighting in entertainment venues, etc.

The difference between LED flood light and Spot light

LED spot light

LED spotlights are also called projection lights and spotlights. They are mainly used for architectural decorative lighting and commercial space lighting. They have a heavier decorative composition and a round and square appearance. At the same time, due to the need to consider heat dissipation performance, their appearance is more traditional The cast light is slightly different.

LED Spot light classification:

• Rotation and symmetry

The luminaire adopts a rotationally symmetrical reflector, and the symmetry axis of the light source with rotationally symmetrical light distribution is installed along the axis of the reflector; the iso-intensity curve of this type of luminaire is concentric.

When this type of spotlight is illuminated by a single lamp, an elliptical spot is obtained on the illuminated surface, and the illuminance is uneven; but when multiple lamps are illuminated, the 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, and they are installed on high towers around the stadium to obtain high illumination and high uniformity lighting effects.

• ② Two symmetrical plane shapes

The iso-intensity curve of this type of projector has two symmetry planes. Most luminaires use symmetrical cylindrical reflectors, and linear light sources are installed along the cylindrical axis.

• ③ A symmetrical plane line

There is only one symmetry plane for the equal intensity curve of the lamp. The luminaire adopts an asymmetric cylindrical reflector or a symmetrical cylindrical reflector plus a grid that restricts light. Typical is the sharp cut-off block retracted light distribution. This kind of light intensity distribution single lamp can obtain a more satisfactory illuminance distribution.

• ④ Asymmetric shape

The iso-intensity curve of this kind of lamps has no symmetry plane. Mainly use mixed light lamps with 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.

LED spot light characteristics

LED spot lights mostly use high-power LEDs (each LED component will have a high-efficiency lens made of PMMA, and its main function is to secondarily distribute the light emitted by the LED, that is, secondary optics); there are also a few companies because The heat dissipation technology is handled well, and the LED of 3W or higher power is selected. LED spot light is suitable for flood lighting in large occasions, buildings and other lighting.

What else do I need to know to use LED spot light?

①The high-purity aluminum reflector has a concentrated beam and a better reflection effect.

② Symmetrical narrow-angle, wide-angle and asymmetric light distribution systems.

③ The light bulb can be replaced with an open-back type, which is easy to maintain.

④The lamps are equipped with scale plates to facilitate adjustment of the angle of illumination.

LED spot lights can be controlled by the built-in chip to achieve dynamic effects such as gradation, jump, color flashing, random flashing, and gradual alternation in small-scale engineering applications; it can also achieve chasing, scanning and other effects through DMX control.

At present, the main application fields of LED spot lights are: single buildings, exterior wall lighting of historical buildings, building interior and exterior lighting, indoor local lighting, green landscape lighting, billboard lighting, medical culture and other special facilities lighting, bars Atmosphere lighting in entertainment places such as dance halls, etc.

LED flood light

The LED flood light is a point light source that can illuminate evenly in all directions, and its illumination range can be adjusted arbitrarily.

LED floodlights are the most widely used light source in life. In the scene, multiple floodlights can be used in coordination to adjust the best effect. At the same time, floodlights illuminate objects uniformly in all directions from a specific point, like light bulbs and candles.

Floodlights can be placed anywhere in the scene. But it should be noted that floodlights cannot be placed too much, otherwise the actual application scene will appear dull and dull.

Under small current, the temperature rise of LED flood light is not obvious. If the ambient temperature is high, the main wavelength of the LED floodlight will shift red, the brightness will decrease, and the luminous consistency will become worse; especially the temperature rise of the dot matrix and large display will have a more significant impact on the stability of the LED floodlight. The heat dissipation design of the light lamp is critical.

The difference between LED Flood Light and Spot Light

The difference in use:

There is no need to place too many floodlights, otherwise the visual effect will appear dull and dull; in practical applications, you need to pay attention to the lighting parameters and the light perception of the entire application scene.

The beam direction of the spot light is more concentrated, and there are scale plates on the lamps to adjust the illumination angle.

The difference in irradiation range:

Floodlights have a wide and uniform illumination range; spot lights are also called spotlights, with concentrated beams.

LED floodlight installation skills and precautions

Although LED floodlights are easy to install, there are some installation skills and need to pay attention to, which complement the advantages of LED floodlights. Buying lamps is equipped with fixing screws, and the installation is relatively simple. To elaborate: the materials needed: LED guardrail lamp clips, transformers with waterproof function, sub-controllers, the steps are as follows:

1. Install guardrails and punch holes on the wall. The spacing should be within 3 cm according to actual requirements.
2. Take anti-static measures, such as the workbench should be grounded, workers should wear corresponding electrostatic clothing, and anti-static measures, because different grades of LED floodlights have different qualities and different anti-static capabilities.
3. Pay attention to airtightness during installation, poor airtightness will directly affect the service life of LED floodlights
4. The wiring of the LED floodlight should not exceed 25 cm, and the power of the transformer can be
   lengthened accordingly, otherwise the brightness will be affected.

  Precautions

Precautions for the installation of LED floodlights

1. Try to use the LED form in series, because the voltage difference of LED floodlight is special. The peak current of the ordinary LED is maintained at 80 mA, and the reverse voltage is around 6V. When designing the circuit, pay attention to the peak voltage and current under this limit.
2. When soldering, use a voltage below 25 watts, and the temperature of the electric soldering iron is controlled below 300 degrees Celsius. Do not squeeze the epoxy resin part of the exposed SMD LED under high temperature or wipe it with a sharp object, because the LED lamp is very fragile Yes, it is easily damaged, and the welding time is less than 3 seconds.

LED floodlights are widely used, so installation skills and precautions are very important. LED is a new light source, and under the correct installation method, it can ensure the stable and long-term normal operation of LED floodlights.