How to choose energy-saving lamps for decoration
1, look at the famous brands of outer packaging
For example, choose products with safety verification such as the Great Wall logo; Choose famous brands (the famous brands or manufacturers of energy-saving lamps in the national list are: Philips, GE, and Osram of Aasland? , Weihai Beiyang, Sunshine Group, Far East, Jianhu, Shangdian, Siyang bulb factory); Choose those with exquisite packaging, beautiful appearance, detailed manufacturer address, complete mobile phones and sound professional skills.
2. Look at the function
If the merchant has an AC voltage regulator, it is best to turn on the AC voltage regulator 150W (according to the strategy of extremely low starting working voltage listed in the manual), install a hot lamp, turn off the portable lamp, and connect the switching power supply to ignite it at one time. There is a certain reason why the narrative here is so complicated, because the start-up of energy-saving lamps has two characteristics, one is that the higher the temperature, the easier it is to start, and the other is that the light is easier to start under the magnetic induction of body touch. We also need to remind you of the confusion of "one ignition". Many lights come on as soon as they are turned on, which is not good. More delicate lamps, the internal structure is generally equipped with a tungsten wire heating power supply circuit, which will be 0.4 when starting. The second operation is delayed, so the "primary ignition" should be controlled to be less gorgeous when starting, and there is no need for red light at the root of the lamp.
3, look at the work situation
The purchase of fluorescent lamps can be guaranteed in the previous step, but energy-saving lamps will not work. After successful startup, the AC regulator should be stopped and the working voltage of 250W should be obtained. Min or more, let it skillfully raise the temperature to see if it shows beautiful scenery, and smell the top of the lamp together to see if the smell overflows.
Step 4 look at the invasion
In China, EMC testability is a new project that household appliances must pass. But the inquiry for this new product is very confusing. When buying lamps, customers should check whether there is a sign on the outer packaging that has passed the EMC testability test in China. Secondly, they should bring a shortwave radio. When the lights are working, they should put the tape recorders together. Where there is no short-wave radio station, the lower the noise announced by FM broadcast, the better the emc performance of the lamps to be tested.
5, look at the main performance after work
Finally, don't forget to compare the temperature of the removed lamp arm. The lower the temperature, the better. In addition, after the test, the root of the lamp will appear black marks. Please note that the longer and darker the blackened part, the lower the life of the lamp.
6. Visual inspection
The plastic shell of the lamp must be flame retardant. Generally, plastics are easily deformed and flammable, which discourages the production of energy-saving lamps. On the surface, the two can be simply distinguished. The surface of the latter is moist and shiny, while the surface of the former has a layered feeling similar to frosted laminated glass. In addition, from the point of view of lamp tube, multiple lamps can be put together for comparison. The lamp tube is standard and beautiful, and the product is bent and formed. Yigong's products are good, the quality is relatively simple, and the interchangeability is good when repairing. Naturally, there should be no gaps, looseness and prying marks between seams in appearance.
Energy-saving lamp procurement project
1, see if there is a check;
2. Look at the outer packaging box of the product, including the trademark identification, standard output power and specific contents of the label, and clean it with a soft and wet rag. The label is legible, that is, the service life of standard energy-saving lamps can reach more than 500 hours under test conditions, and it must reach more than 200 hours for routine use. If you can't meet this standard, it is inferior; Safety requirements: in the process of machine equipment and disassembly, see if the led lamp cap is loose, crooked neck and insulated;
3. In addition, see whether the outer tube material of the energy-saving lamp is resistant to high temperature and fire safety, and whether the luminescent powder in the lamp is symmetrical. If you don't use it, there will be black scenery on both sides of the lamp tube, which are unqualified products; There is also a point of price comparison. Generally speaking, the cost of energy-saving lamps is relatively high due to special factors in the manufacturing process. Suppose it is an energy-saving lamp of seven or eight yuan, which is likely to be inferior products produced by some small processing plants. Usually, the price of domestic energy-saving lamps is more than forty or fifty yuan, and more of them are imported.