Nowadays, LED lamps have replaced traditional lamps in the market as mainstream lighting products. Faced with all kinds of LED lights on the market, what kind of choice is it worth us?
Different from the material, one is LED hard light strip, and the other is LED soft light strip made of flexible material. LED hard light strips are assembled with PCB hard boards. LEDs are assembled with LEDs and assembled with in-line LEDs. The advantages of LED hard light strips are relatively easy to fix, and it is convenient to process and install. The disadvantage is that they cannot be bent at will. The LED flexible strip is assembled with FPC and assembled with SMD LED. The thickness of the product is only one coin thickness, which does not occupy space and is easy to bend. It is suitable for various shapes.
From the color, the LED lights are available in colorful, white, warm white, red, green, yellow, blue, etc. The colors can be distinguished according to the color temperature. Generally speaking, the color temperature is below 3300K, and the light color is reddish. The feeling of warmth; the color temperature is in the middle of 3000-6000K, people have no obvious visual psychological effect under this color tone, so it is called "neutral" color temperature, the color temperature is over 6000K, and the light color is blue.
Purchase points:
1. Look at the packaging and trademarks. The state mandates LED lamp manufacturers to mark the following contents on the product packaging: rated voltage, voltage range, rated power, and rated frequency. Generally speaking, the quality of the trademark printing of high-quality products is good, the mark is clear and identifiable, it is not easy to wipe off with a soft damp cloth, and there are trademarks of the manufacturer and related certification marks.
2. Look at the appearance of the lamp. There should be no signs of cracks, looseness and smashing between the interfaces. During the installation and disassembly process, the lamp cap should not be loose or smashed. The plastic shell of the lamp must be selected from the flame retardant type of engineering plastic, which is characterized by a texture similar to frosted glass on the surface. The ordinary plastic surface is smooth and shiny, but it is easily deformed and flammable. It is forbidden to be used in the production of energy-saving lamps.
3, look at the work status. Under normal working conditions, the temperature rise of the LED lamp should be relatively low. If the heat dissipation condition is not good, the lamp bead works at high temperature, the light decay will be large, and the lamp life will be greatly reduced. At the same time, if the luminaire is lit and turned off, if there is a rapid flashing, it also indicates that there is a quality problem.
4. Listen to the work voice. Electromagnetic compatibility is a project that must be passed by electrical appliances. The national electromagnetic compatibility test mark must be printed on the packaging of LED lighting products. We can also use a small experiment to make a simple judgment, with a medium-short-wave radio. When the lamp is working, put the radio nearby. The lower the noise received by the radio, the better the electromagnetic compatibility of the lamp under test. In the silent environment, when listening to the sound of the LED lamp working, if the sound of the lamp work is very obvious, the power of the lamp is not very good.
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