With the increasingly strong sound of energy conservation and environmental protection, we are using more and more LED lights in lighting design. LED market is now a mixture of good and bad, manufacturers and businesses are pushing and blowing their own products. So what do you know about LED line lights?

The selection of LED lamps includes appearance, heat dissipation, light distribution, glare, equipment, etc. We don't talk about the parameters of lamps today, just about the light source: do you really choose a good LED light source? The parameters of light source mainly include: current, power, luminous flux, luminous decay, light color and color rendering.

Wrong choice of LED line lamp

The first mistake is that the expectation of using longevity in practice is too high.

However, just like all the base light sources, the luminous flux lumen of LED also decays with time. Therefore, although LED lighting time can be very long, led lumen attenuation is affected by many environmental conditions such as ambient temperature, humidity and ventilation. Lumen decay is also influenced by many other electrical design considerations such as manipulation, thermal treatment, current water steepness.

The second mistake is to regard the practical luminous viewpoint as a useful viewpoint.

The luminous viewpoint of LED includes useful viewpoint and practical viewpoint. The angle between the direction where the luminous intensity value is half of the axial intensity value and the luminous axis is the useful viewpoint. Two times of the half value angle is the practical luminous viewpoint. The viewpoint beyond half of the axial intensity is not included in the useful viewpoint in practice because the light is too weak.

Therefore, customers should pay attention to the practical luminous viewpoint when purchasing products. When calculating the quantity of products used in the project, the practical luminous viewpoint shall prevail. The useful luminous viewpoint can only be used as a reference value.

Third, the higher the power, the higher the brightness.

The brightness of LED is measured by the luminous intensity, which refers to the luminous intensity in the direction of the normal line (the axis of the cylindrical luminous tube), that is, the luminous flux per unit solid angle, in candlelight. Because the light intensity of general LED is small, so the light intensity is commonly used as the unit of millicandela. Generally speaking, the light source will radiate its luminous flux in different directions with different intensities. The intensity of visible light emitted by the unit solid angle in a specific direction is called light intensity, which is called axial brightness for short.

Article source: downlight shell manufacturerhttp://www.jinleidj.com/