Explanation of LED color temperature
We should also be able to see the tested data. It is the relevant color temperature, not the color temperature. Is there any difference between them? Of course. The color temperature of outdoor lighting lamp brand refers to that when the color of the light emitted by the light source is the same as the color of the light radiated by the black body at a certain temperature, the temperature of the black body is called the color temperature of the light source. That is to say, only when it falls on the blackbody radiation line can it be called the color temperature.
And the light emitted by LED is not thermal radiation, so its light color may not fall on the blackbody radiation line. For outdoor lighting brands, we can only find the point near this line, where is its relevant color temperature.
Look at the label on the lamp. Generally, regular line lamp manufacturers will stick labels to indicate the specific parameters of the product before the lamp leaves the factory. We can see how many volts the line lamp uses through the labels.
2. What to do without labels? There is no label on the lamp to indicate the voltage. If there is transparent glue on the lamp, when the components inside the lamp can be clearly seen, it can be judged by the number of lamp beads, resistance, capacitance and other components, and then the lighting condition of the lamp can be tested from low to high voltage. During this period, some electrical testing tools can be selected for auxiliary testing. If the internal components of the lamp body cannot be seen clearly, the lamp needs to be disassembled for inspection.
Why should light diffusion lens be selected for LED line lamp. It can be compared to the light-emitting mode of our conventional LED line lamp lens and the light-emitting mode with the light diffusion lens. From the comparison of the two pictures, we can clearly know that the role of light diffusion is to extend the light beam to the left and right sides to achieve the lighting effect of no dark area.
If the vacuum is not evacuated during the glue filling process, the air trapped at the bottom of the PCB and the glue can not be completely filled, which will lead to the weak link of waterproof glue filling. Moreover, the trapped air inside will generate secondary air holes or capillary phenomenon due to the negative pressure of the cavity due to thermal expansion and cold contraction under the alternating heating and cooling of the circuit switch. The appearance and performance of LED linear lamps are affected.
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