LED lamps in the market today has replaced the traditional lamp lighting products become mainstream . Face of the market for various types of LED lights, so in the end what is our choice worth it?
From the material distinction , one is LED light bar , one is made with a flexible material soft lights with LED . LED light bar is made by assembling circuit boards PCB hard board , LED SMD LED assembled a useful , but also useful for assembly -line LED . LED light bar strengths are relatively easy to fix , processing and installation more convenient , the disadvantage is not bent . LED Flexible Strip is done using FPC circuit board assembly , assembled with SMD LED, the product thickness is only the thickness of a coin , does not occupy space , and easy to bend , suitable for a variety of shapes .
From the color points , LED lights with colorful , white, warm white, red , green, yellow , blue and other colors can be distinguished according to the color temperature , in general, the color temperature below 3300K , the light gives a red color cast warm feeling ; color temperature 3000-6000K is the middle man in this tone is not particularly obvious visual psychological effects , so called ” neutral” color temperature , color temperature than 6000K, light color blue.
1, see packaging and labels . National mandatory LED lighting manufacturer marked on the product packaging the following : Rated voltage , voltage range, rated power, rated frequency. In general, good quality products and printing quality trademark , logo clearly visible, easy to wipe clean with a soft damp cloth , and there is the manufacturer’s trademark and related certification mark.
2 , see the lamp appearance. There should be no cracks , loose and interfaces between being prized appearance . During the installation , removal, lamp should not be loose or head tilt phenomenon . Light plastic case must choose the kind of flame retardant engineering plastics , is characterized by its surface like frosted glass texture. The ordinary plastic surface is smooth and shiny , but easy to deform and flammable , is prohibited for the production of energy-saving lamps .
3, see the operation state . LED lamps under normal operating conditions , the temperature rise should be relatively low, if the conditions are not good heat lamp work beads at high temperatures , light will be great, lamp life will be greatly reduced. Meanwhile, when the lamp is lit on and off , if there is rapid flashing, also shows that there are quality problems.
4 , listen to the voice work . EMC is a project that must be passed appliances , LED lighting products on the packaging must bear the national flag of electromagnetic compatibility testing . We can also determine a small simple tests , with a short-wave radio , when the operation of the lamp , in the vicinity of the radio , the lower the received radio noise , electromagnetic compatibility test described light as possible. Environmental liking the sound mute LED lamps at work , if you can very clearly hear the voice of the lights work , indicating the lamp power is not very good .
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