As a widely used LED lighting fixture, what are the adv […]
As a widely used LED lighting fixture, what are the advantages and disadvantages of LED fluorescent lamps compared with the fluorescent lamps that TA will fully replace? You should know this common sense. Perhaps you will avoid detours in the future purchase of lamps. Below we will make a comprehensive comparison of the brightness (luminous efficiency), power consumption, life and color rendering index of LED fluorescent lamps and fluorescent lamps.
1. The brightness of LED fluorescent lamps and fluorescent lamps (the professional term is called light effect)
The luminous efficiency of the current finished LED fluorescent lamps can reach 130lm/W or more for the top products, the luminous efficiency of the mid-to-high-end products is about 110lm/W, the mid-range and middle-lower range are around 80-90lm/, and the poor ones are around 60-70; In contrast, T8 fluorescent lamp (ordinary halogen powder) has a higher luminous efficiency of 72lm, and the reflection efficiency of ordinary T8 fluorescent lamps is extremely low. According to the data we tested with professional luminous flux testing equipment, the luminous efficiency of ordinary T8 flat cover brackets is only a poor 33lm/ W, the higher cost T8 bracket with cover is less than 40lm/W. The above shows that the luminous efficiency (brightness) of high-quality LED fluorescent lamps is more than 3 times that of ordinary fluorescent lamps. LED fluorescent lamps and fluorescent lamps In comparison, the brightness is brighter.
2. Comparison of power consumption between LED fluorescent lamps and fluorescent lamps
Based on the above-mentioned leading bar, the current 1.2m LED fluorescent lamp power on the market can achieve 20W, 18W, 16W or even 12W, and the brightness is mostly brighter than ordinary fluorescent lamps, and the better quality luminous efficiency is above 110lm, even if the LED fluorescent lamp The power is 12W, and the brightness is more than 30% brighter than the original 40-plus watts. From the comparison of the figures of 20W, 18W, 16W and even 12W with 40W, we can see that the power consumption of LED fluorescent lamps is compared with fluorescent lamps: LED fluorescent lamps save about 50%-78% power than fluorescent lamps.
3. Comparison of LED fluorescent lamp and fluorescent lamp life
According to the national standard, the life of ordinary fluorescent lamps is usually 8000 hours (ordinary with starter and inductive ballast delayed preheating start, the starter flickers during the start-up process, carefully observe the filaments at both ends of the lamp tube will warm up during the start-up process Red), if it is an instant start or quick start without preheating function, the life span is only a poor 3000 hours,
4. Comparison of color rendering index (reproduction of object color) between LED fluorescent lamp and fluorescent lamp
The color rendering index refers to the color rendering ability of a light source to an object, called color rendering, which is compared with the appearance of the object under the same color temperature or reference light source (incandescent lamp or painting light). The higher the color rendering index, the more realistic the colors of objects we see. Ordinary fluorescent lamps are usually around 50, and LED fluorescent lamps are usually around 70-80. It can be seen from the fact that the color rendering index of LED fluorescent lamps is higher than that of fluorescent lamps and can better reflect the true color of objects.
5. Comparison of color temperature between LED fluorescent lamp and fluorescent lamp
Normally a reasonable ratio of fluorescent lamps, LED fluorescent lamps and ordinary fluorescent lamps have a relatively wide color temperature range, almost all can provide any color temperature, and can also provide red, green, blue or even any color of light. Both performances are comparable.
6. LED fluorescent lamp and fluorescent lamp price comparison
With the gradual popularity of LED fluorescent lamps, the price of LED fluorescent lamps has gradually fallen to the range acceptable to the public since the second half of 2014. A high-performance LED fluorescent lamp has a price of less than 35 yuan, which is comparable to ordinary fluorescent lamps. In comparison, it has begun to have a clear price advantage. And if the user originally has ordinary fluorescent lamps, through simple replacement, replace ordinary fluorescent lamps with LED fluorescent lamps, usually 3-6 months of electricity savings are enough to offset all the investment in purchasing LED fluorescent lamps, 24 hours work system commercial electricity occasions , Even less than a month and a half, the energy-saving electricity bill can recover the cost of buying lights.
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