With the growing popularity of energy saving and environmental protection, we are increasingly using LED lights in lighting design. At present, the LED market can be described as a mixed bag, and the manufacturers and businesses are pushing and blowing their own products. So how much do you know about LED line lights?
LED lighting options include appearance, heat dissipation, light distribution, glare, and installation. We don't talk about the parameters of the luminaire today, only the light source: Do you really pick a good LED light source? The parameters of the light source are: current, power, luminous flux, light decay, light color, color rendering.
Misunderstanding 1, the expectation of the actual service life is too high.
However, like all basic light sources, the luminous flux of an LED is also attenuated over time. Therefore, although the LED illumination time can be very long, the attenuation of the LED lumen is affected by many environmental conditions such as ambient temperature, humidity and ventilation. Lumen attenuation is also affected by control, thermal management, current levels, and many other electrical design considerations.
Misunderstanding 2, the actual luminous angle is taken as an effective angle.
The illumination angle of the LED is divided into an effective angle and an actual illumination angle. The angle between the direction in which the luminous intensity value is half of the axial intensity value and the luminous axis is the effective angle. The angle of view of the half value angle is the actual illumination angle. Angles other than half of the axial strength are not considered effective angles in practical applications because the light is too weak.
Therefore, consumers should pay attention to the actual lighting angle of the product when purchasing products. When calculating the number of products used in the project, the actual lighting angle is the standard, and the effective lighting angle can only be used as a reference value.
Misunderstanding three, the higher the power, the higher the brightness.
The brightness of an LED is measured by the intensity of illumination, which is the luminous intensity in the direction of the normal (for the axis of the cylindrical light-emitting tube), that is, the luminous flux emitted by the unit solid angle, in units of candle light. Since the luminous intensity of a general LED is small, the luminous intensity is often used as a unit of millicandela. Generally speaking, the light source emits its luminous flux at different intensities in different directions, and the visible light radiation intensity emitted by the solid angle in a specific direction is called light intensity, which is simply referred to as axial brightness.
First of all, we often say: "How many watts of light do I need?" This habit is to continue the traditional light source. At that time, there were only a few fixed wattages of light source, which could only be selected within those wattages and could not be adjusted freely. And now the LED, the drive current is slightly changed, the power will change immediately! Are you still asking for power? Watch out! The same LED light source, when driven with excessive current, the power is up, but it will cause the light effect to decrease and the light decay to increase.
LED line light is a kind of soft LED decorative light, which is also a kind of LED wall washer. It can be installed in single or multiple combinations, and has the advantages of long life, easy bending and low power consumption.
The LED line lamp is a very simple product. Its appearance, structure and functionality are almost the same in the market. The general LED line lamp is assembled with the LED of the patch, and it is also assembled with the in-line LED.