LED Lamp Beads Buy Three Major Misunderstandings

Misunderstanding 1, the expectation of the actual service life is too high LED lamp bead manufacturer expects the LED lamp bead life to reach 100,000 hours. However, just like all basic light sources, the light flux flow of LED lamp beads has also decreased over time. Therefore, although the lighting time of LED lamp beads can be long, MTBF is not the only consideration for determining the service life. The decay of LED lamp beads is affected by many environmental conditions such as environmental temperature, humidity and ventilation. The influence of lingering attenuation is also affected by control, thermal management, current level, and many other electrical design considerations. Many salespersons may provide customers with some fuzzy information for some reasons when selling LED lamp beads, causing misleading. For example, the service life of LED lamp beads is about 100,000 hours. The 100,000 hours here refers to the manufacturer's expected LED Lighting life life. However, as a light source of lighting, the brightness of the lights has a process of gradually decaying darker (such as sunlight, energy -saving lamps). This process is referred to as light decay. Therefore, consumers should pay attention to its light decay speed when buying LED lamp beads, not use time. Consumers will not expect the actual life expectancy. Divide the actual light angle as an effective angle of LED lamp beads into an effective angle and actual light emitting angle as an effective angle of LED lamp beads. The angle between the angle between the direction of the emitting strength is half the direction of the axial strength and the light emitting axial (method) is a valid angle. Two times the angle (or semi -power angle) of the half -value angle is the actual lighting angle. Angle beyond the angle of the axial strength, because the light is too weak in the actual application, does not count on the valid angle. Therefore, consumers should pay attention to the actual lighting angle of the product when buying products. When calculating the number of products used in the calculation project, the actual lighting angle shall prevail. Misunderstanding three, the greater the power, the higher the brightness of the LED lamp beads measured with the light emitting intensity. The light emitting intensity refers to the light emitting intensity in the direction of the method line (to the cylindrical luminous pipe refers to its axis) Light flux, the unit is candlelight (CDLA, CD). Because the luminous intensity of the general LED lamp beads is small, the luminous intensity is often used in the units of the country. Generally speaking, the light source will radiate its light flux in different directions in different directions. The visible light radiation intensity released in the three -dimensional angle of the unit in a specific direction is called the light intensity, referred to as the axis brightness. From the concept of the power to the power of the power in the same time, the current is fast, the current is fast, the electricity is large; the current is slow, the electrical power is small, or in the equal time, the more the current does the current, the greater the electricity. On LED lamp beads, the greater the power, the higher the brightness of the product. Taking the three light red LED lamp beads of Yimei Electronics as an example, when the axial brightness is 1200mcd, the current is 40mA and the power is 0.48W; the three lamp white LED lamp beads are under the same brightness, the current is 18mA, the power is only 0.24W is only 0.24w It can be seen that the power of the two lights under the same brightness is different. Therefore, consumers should pay attention to its axis brightness when buying LED lamp beads, not power.