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Classification and characteristics of LED floodlights

Update:30 Aug 2019

LED floodlights are also called spotlights, projection […]

LED floodlights are also called spotlights, projection lamps, spotlights, etc., mainly used for architectural decorative lighting, as well as commercial space lighting, decorative components are heavier, and their appearance is round and square, because Generally, it is necessary to consider the cause of heat dissipation, so there are some differences between the shape and the traditional spotlight.

LED flood light classification:

a symmetrical plane

The equal intensity curve of the luminaire has only one plane of symmetry. 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.

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. Asymmetry

The iso-intensity curves of such lamps do not have a plane of symmetry. It is mainly used for light-mixing lamps of different kinds of light sources with different light intensity distributions and special lamps designed according to the specific lighting requirements of the place of use.

4. 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 the case of single-lamp illumination, the illumination spot on the illuminated surface has an illuminating unevenness, but when the illumination is multi-lighted, 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.

LED flood light features:

At present, LED floodlights commonly used in the market basically use 1W high-power LEDs (each LED component will have a high-efficiency lens made of PMMA, and its main function is to distribute the light emitted by the LEDs twice, that is, two. Sub-optics), there are also a few companies that use 3W or higher power LEDs because of the heat treatment technology. Suitable for large-scale lighting, lighting, buildings and other lighting.