LED energy saving lamp has been widely welcomed by consumers due to its obvious electricity saving effect, long service life, no stroboscopic effect, no noise, light intensity and wide working voltage range. But there are many LED energy saving lights on the market, and the quality is different. How to choose a satisfactory product in the beautiful lamps and lanterns in the lamps and lanterns shop? Through the "five look" can identify the advantages and disadvantages of energy saving lamps, introduced as follows.
A look at the packaging and trademark
The state requires the LED lamps and lanterns manufacturers to mark the following contents on the outer packaging: rated voltage, voltage range, rated power and rated frequency. Generally speaking, the printing quality of premium products is good, the typeface is clear, and it is not easy to fall off. It is wiped with soft wet cloth. The logo is legible and distinguishable, and it is not easy to erase. There are manufacturer''s trademarks and related certification marks. The quality of the counterfeit and inferior products is poor, the typeface is blurred, and it is easily erased. There is no manufacturer''s trademark and related certification marks.
Two look at the appearance of LED lamp tube
The real LED energy saving lamp is three basic color tube, tube white, hand cover with the watch, more white. In addition, from the perspective of the tube, we can put more than one lamp together, and the shape and size of the tube are better. Most of them are machine bending, most of which are mass produced products. The product has good consistency, the quality is easy to be guaranteed, and the interchangeability is better in maintenance. Of course, there are no cracks, loosening, and marks that have been pried between interfaces in appearance. In the process of mounting and dismounting, the lamp should not be loose, head tilt phenomenon.
The plastic shell of the lamp must be selected for the flame retardant type of the engineering plastic. Ordinary plastic is easily deformable and flammable, which is forbidden to be used in the production of energy saving lamps. On the surface, the two can be easily identified. The surface of the latter is smooth and glossy, and the surface of the former is similar to the texture of sand glass.
Three look at the temperature of the work
Under normal working condition, the temperature rise of LED energy saving lamp should be very low. Otherwise, LED energy saving lamp life is very short. At the same time, when the energy saving lamp is lit, there is a quick flashing, or a very sharp eye fluctuation, which shows the quality problem of the energy saving lamp.
Four look at startup performance
LED energy saving lamp has two characteristics: one is that the higher the temperature is, the easier it is to start; the two is to turn off the lamp and not to flicker. In addition, it is worth mentioning that many LED energy saving lamps are very dark, which is unfavorable for the life of lamps. LED energy-saving lamps should have power circuits and PCB boards inside.
Five see the interference situation
In our country, the electromagnetic compatibility is electrical appliances must pass project, however, this test is very complex, the user purchase light on whether there is a look at the packaging through the national symbol of the electromagnetic compatibility test, two with a shortwave radio, when the lights work, placed near the radio, radio to shortwave radio without where the noise is low, the measured electromagnetic compatibility lamp is better.