The use of energy-saving lamps as an alternative to incandescent lamps is a trend. For ordinary people, it is also a good way to save electricity. It is characterized by high luminous efficiency, long life, and good light color. Divided into straight tube type, ring type, compact type, etc., but due to the large number of counterfeit and shoddy goods in the market, in order to truly realize the dream of “saving electricity and saving moneyâ€, let's take a look at your dreams. A few ideas! 1. To buy energy-saving lamps to be preferred well-known brands, should use the quality and technical supervision of the State Quality and Technical Supervision announced the quality of the brand, do not use inferior products; to confirm the integrity of the product packaging, the logo is complete, to buy a "three guarantees" commitment Product; usually on the packaging of the energy-saving lamp life, color rendering, the correct installation position to explain. 2. Look at whether there are national inspection reports; after opening the packaging, the energy-saving lamps should also have some necessary signs, including: power supply voltage, frequency, rated power, the name and trademark of the manufacturer. Wipe with a soft, damp cloth, markings should be legible; 3. There is no energy efficiency label. At present, the country has introduced energy efficiency standards for energy-saving lamps. Energy-efficiency labels are available to meet the standards. This is because energy-saving lamp products with an average life expectancy of more than 8,000 hours can be issued. 4. To pay attention to the tungsten bulb power, most manufacturers will list the power of the product itself and the tungsten light bulb power of the control similar to that of the control. For example, the sign “15w → 75w†generally indicates that the actual power of the lamp is 15w, which can emit a similar luminosity to a 75W tungsten bulb. Note: The use of voltage on the lamp If the low-voltage energy-saving lamp is used under high-voltage power, the lamp will be burned; 5. Consider the electronic ballast's technical parameters. Ballasts are the core components in lighting products. Energy efficiency national standards focus on the ballast energy efficiency limit value and energy conservation evaluation value. 6. The choice of appearance. There are many kinds of lamps and lanterns decoration. When choosing the whole lamp, pay attention to the plastic shell, it is better to be the heat-resistant flame-retardant plastic shell. 7. Try it before payment. After choosing a satisfactory energy-saving lamp, do not rush to make a payment. The general store will provide lamp holders to consumers to test the lamp, and try it before payment to ensure that the energy-saving lamp operates normally. 8. The warm light design and superb color technology of high-quality energy-saving lamps make the light colors look good and comfortable. The user can select the light color that matches the home design according to personal preference. 9. After the lamp is powered on, you should also pay attention to whether the thickness of the phosphor coating is uniform or not. This will directly affect the normal lighting effect of the light. 10. It depends on the safety requirements during the installation and dismantling process to see whether the lamp is loose, whether there is a gimmick phenomenon, or whether it is insulated; 11. It depends on the self-ballasted fluorescent lamp with a qualified lifespan that must reach 8000 hours or more in normal use. If it fails to meet the standard, it is a bad quality product; 12. Look at the material of the lamp to see if the appearance material is heat-resistant, fireproof, and if the phosphor in the lamp is uniform. If it is not used, there will be blackening at both ends of the lamp, all of which are unqualified products; 13. For the comparative test, the light produced by the high-quality energy-saving lamp is completely the same as that of the incandescent lamp, giving a comfortable feeling. If you look directly at the light bulb, you will feel dazzling. Inferior or counterfeit products do not have such characteristics. The light that is emitted is covered with a layer of gray, and the light color is uncomfortable. Under such light irradiation, the colors will be distorted and the light bulb will not look harsh. Furniture brand villa design lighting decoration home
Centrifuge tubes are used in laboratory centrifuges, machines that spin samples in order to separate solids out of liquid chemical solutions. The centrifuge tubes can be made of glass or plastic, and resemble miniature test tubes with tapered tips. They are mainly used in series test like the centrifuge of nucleic acid
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