How to identify the advantages and disadvantages of energy-saving lamps?

Energy-saving lamps, also known as "compact fluorescent lamps", have the characteristics of high luminous efficiency, obvious energy-saving effect, long life, small size and convenient use. At present, the energy-saving lamp market is relatively chaotic, the quality is uneven, the low-end products are flooding the market, and the inferior products “halogen powder” lamps are flooding, which has brought a great negative impact to the entire lighting industry. So how to identify the advantages and disadvantages of energy-saving lamps?

In general, high-quality energy-saving lamps have the following characteristics: First, high visual light efficiency, high brightness and power saving; second, high color rendering index, can restore the true color of the object, no color distortion, close In natural light; third is long life, low light decay, long-term use of brightness will not be significantly reduced or invalid; Fourth, the luminous flux is smooth and stable, no stroboscopic effect hazard, that is, no flickering, not easy to produce visual fatigue; Strong adaptability, that is, strong resistance to voltage fluctuations, and practical in areas with unstable voltage. The above performance characteristics can be detected using professional equipment, and how do ordinary consumers identify energy-saving lamps? Here are a few tricks for consumers:

Look at the packaging and logo

The energy-saving lamps produced by regular manufacturers have clear and strong following signs: source mark (in the form of trademark, manufacturer or vendor name), rated voltage and voltage range (in "V" or "volt") , rated power (in "W" or "watt"), rated frequency (in "Hz"). The marking of the product and the outer packaging is of good quality, clear font and not easy to fall off.

View the outer packaging, if there is CQC certification (safety certification) and "section" word certification (energy saving certification), the product safety and energy efficiency are more secure; at the same time, check the "China Energy Efficiency Label", the higher the level, the better the energy saving effect.

Look at the appearance

The energy-saving lamp is composed of three parts: a lamp cap, a plastic part and a lamp tube.

For the lamp holder, choose nickel-plated nickel, and you can't use iron. The nickel-plated lamp cap looks shiny and feels good.

Plastic parts, choose plastic parts that are not white in color, strong in hardness and rigidity, and good in crack resistance.

Fluorescent tube, choose a smooth surface, no bubbles, the phosphor coating in the tube is fine, no particles, uniform white, fluorescent coating without depilation, spots and blackheads. The lamp cap and the lamp tube should be in a vertical state, and should not be inclined, and the contact surface between the lamp cap and the power source should be flat.

Test light

The high-quality three-primary energy-saving lamps start to light up slowly, and the brightest effect can be achieved after 3 minutes to 5 minutes. The inferior "halogen powder" lamp or "mixed powder" lamp achieves maximum brightness immediately after power-on.

After turning on the light for 5 seconds, and then closing for 55 seconds, observe the lamp for early blackening and redness after several cycles.

You can observe the perception of energy-saving lamps. The light from the high-quality products has a sense of comfort, and the light emitted by the counterfeit and shoddy products is covered with a layer of gray, and the color of the light on the object is distorted.

Energy-saving lamp color temperature selection

The color temperature indicates the scale of the light color of the light source, and the unit is K. A low color temperature source is characterized by a relatively large amount of red radiation in the energy distribution, commonly referred to as "warm light"; after the color temperature is increased, the proportion of blue radiation in the energy distribution increases, commonly referred to as "cold light." The choice of color temperature is mainly based on personal preference. Of course, energy-saving lamps with different color temperatures can be selected according to seasonal changes. In winter, low color temperature products can be used to bring warmth; in summer, high color temperature products can be used to bring coolness. sense.

Color rendering performance

The energy-saving lamp with high color rendering performance does not produce color deviation when viewing colored objects, and the color objects are bright and real. Energy-saving lamps with low color rendering performance, color deviation caused by viewing colored objects, and color objects are gray and fuzzy. In the actual purchase of energy-saving lamps, the identification of the performance of energy-saving lamps can be achieved through the following intuitive methods:

Put your hands in the sun to watch the color, the hands are rosy and full of vitality. Then put your hands under the energy-saving lamp to see the color, the smaller the difference in color under the sunlight, the higher the color rendering performance of the energy-saving lamp. Or put your hands under two energy-saving lamps for comparison. The energy-saving lamp with rosy color and rich vitality has high color rendering performance; the energy-saving lamp with pale and weak color has low color rendering performance.

(Xu Xiangguo)

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