The recent US Consumer Reports evaluated 50 energy-saving lamp products. The evaluation results show that although some of the LED (Light Emitting Diode) energy-saving lamps have poor performance, CFL (Compact Fluorescent Lamp) energy-saving lamps are also lack of inexpensive products. However, from the overall score, LED energy-saving lamps are still higher than CFL energy-saving lamps.
LED energy-saving lamps typically reduce energy consumption by about 75% compared to standard incandescent lamps that have been used for decades, and they also solve many of the energy-saving problems that people often say. From the US Consumer Reports (CR) evaluation, LED energy-saving lamps are expensive, and some of them have poor performance.
Although the price dropped by about 20% last year, the price of many LED energy-saving lamps evaluated before the discount is still 25~60 US dollars. Many industry experts predict that the price of a 60-watt replacement lamp will drop to $10 or less in the next two to three years. Compared to incandescent lamps, the best LED energy-saving lamps can save $130 in their 23-year lifespan, based on $25 per lamp.
In addition, compared with CFL energy-saving lamps, LED energy-saving lamps can be immediately brightened at low temperatures, and continuous switches will not affect their performance. All of the LED energy-saving lamps evaluated were not affected after continuous switching for about 200,000 times. Another advantage of this type of energy-saving lamp is that it does not use mercury and reduces the problem of cleaning after crushing.
Through the above introduction of the advantages of LED energy-saving lamps, consumers can consider whether it is worth buying. If you think that the price is high and not worth buying, then CR has a lot of cheap CFL energy-saving lamps in this evaluation, and can save about 60 US dollars. In addition, there are some CFL energy-saving lamps suitable for special applications, such as chandeliers, three-way lights and 100-watt replacement lamps.
Therefore, in order to better purchase energy-saving lamps, CR does not recommend waiting until the LED lights are reduced before considering purchase. The following are the problems found in this assessment and the purchase guide:
The overall performance of some LED energy-saving lamps is close to the full score of EcoSmart A19 and Philips Ambient LED 60-watt replacement lamps, PhilipsAmbientLED 75-watt replacement lamps, and GE PAR38 20W floodlights. These products with close scores provide bright, adjustable lighting. Incandescent or halogen lights have similar colors.
Not all LED energy-saving lamps are of good quality. Some LED lights were found to be dark, pale, and unable to project light in all directions. For example, MiracleLED, the market price of 20 US dollars, as a 40-watt replacement lamp, its brightness is not enough, the light is blue-white, also sold as a 60-watt replacement lamp on the market. Another GeoBulb 3, with a market price of $25, is not particularly bright enough to perform poorly in situations where light is needed. This problem also exists with LG's 40-watt and 60-watt replacement LED lights.
Replacing energy-saving lamps According to a survey conducted by the Consumer Reports National Research Center in June, about 90% of Americans use LED and CFL energy-saving lamps, of which CFL energy-saving lamps account for the majority, accounting for almost 75%. And only 26% use LED lights. In addition, 7% of Americans use only incandescent lamps. People mainly buy energy-saving lamps because of their low energy consumption, long life and cost savings, and secondly because of environmental protection.
5 tips for improving lighting
Although the energy-saving lamps can be easily bought in the store, the light bulbs in the display window show different illuminations freely, and the package contains energy-saving lamps, but these are not enough to convince many people to buy CFL and LED energy-saving lamps. According to the survey, 23% of Americans believe that the price of energy-saving lamps is too high. Even if the price has been reduced, each energy-saving lamp can also offer a discount of 10 to 25 dollars. The following are the problems found in this survey and the solutions given by the experts:
Question 1 The bulb is not bright enough
Solution: Buy a higher lumen energy saving lamp. The higher the lumen, the brighter the bulb. If you use a 60 watt replacement lamp, you need to buy 800 lumens or more; while a 75 watt replacement lamp requires at least 1100 lumens; a 100 watt replacement lamp requires at least 1600 lumens. Shadows absorb light, so you need a brighter bulb. For floodlights, the lumen should be at least 10 times the wattage of the replacement bulb.
Question 2 The bulb burns out quickly
Solution: Contact the manufacturer or return the bulb to the retailer. There are usually CFL energy-saving lamps with the US Energy Star logo for at least 2 years, and LED lights for 3 years or longer. However, the bulb used on the luminaire may shorten its life, so you will need to check the packing instructions.
Question 3 Light color error
Solution: The unit of the light color is kelvin (Kelvin). The larger the K value, the colder and bluer the light. If you want a warm yellow light from an incandescent lamp, you can choose a bulb labeled 2700k. For a 3000k bulb, the light is whiter, like a halogen lamp. 3500K~4100k, the light is cold, showing bright white light; 5000k~6500k, showing blue light.
Question 4 color distortion
Solution: The higher the CRI (Color Rendering Index), the more realistic the color. Energy-saving lamps for indoor use are recommended to have a CRI of at least 80. Most of the LEDs and CFL energy-saving lamps tested this time are between 80 and 85. Other products with higher or lower CRI indices are also marked in the assessment.
Question 5 bulb shape special
Solution: Compare the bulbs that are being replaced with the CFL and LED products that are being considered for purchase.
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