Fluorescent tubes and LED tubes comparison
LED tubes replace fluorescent tubes have obvious advantages
With the rapid development of LED tube, LED with green energy, no carbon emissions, long life and other advantages, LED as a new light source technology lighting, strongly supported by governments and widely used in various lighting. LED fluorescent tubes will replace fluorescent lamp is inevitable.
The luminous efficiency of fluorescent lamps is about 55-80 lm / W (Philips company T8 fluorescent luminous efficiency of 72lm / W), while the LED luminous efficiency is 100 lm / W or more. And LED luminous Efficiency is also increased year by year.
Difference between the fluorescent and LED tube is obvious:
High light efficiency LED lamps
The efficiency of light refers to the effective optical light efficiency. Because the fluorescent light is 360 degrees, the light emitted in the opposite direction is not used and wasted. So fluorescent lamp usually has a white shade that can put a considerable part of the reverse light reflected back. In general, the efficiency of fluorescent lamps is only about 70%. The LED fluorescent tube is 120 degrees shine, so all the light is effective light. Although sometimes narrow beam angle of 120 degrees feel a little, but still enough in most cases. And the light angle can also be adjusted as needed.
High power efficiency LED lamps
With an example of 36W T8 fluorescent lamps, Its output power is 36W, but due to the access of the ballast, the measured input power is 42.4W, which is the iron-core inductor loss of 6.4W, efficiency is reduced to 85%. Most of the domestic consumption of iron-core inductor is more than 10W, so the power factor is less than 0.512. The LED power efficiency is usually up to 90%, a 18W led tube just require 20W input power. Power factor can reach to 0.9. LED fluorescent Tubes can save about half of the electricity, that uses a 18 watt LED tube can replace a 36-watt fluorescent lamps.
Long life LED lamps
A carefully designed LED fluorescent tube life can reach 50,000 hours. And a fluorescent lamp life is usually only 5,000 hours (some homemade fluorescent life of only 300 hours). The difference is nearly about 10 times.
LED lamps do not contain mercury, no pollution
Fluorescent lamps contain mercury. 36mm fluorescent lamps contain 25-45mg of mercury, 26mm (T8 tube) contains 20mg of mercury. The fluorescent lamps are based on fragile glass as a shell, once glass broken, mercury will soon evaporate into the air, and instantly make the air mercury concentrations reaches to 10-20 mg / cubic meter, exceeding the national standards 1000-2000 times. The Mercury is a very harmful to the human body’ White air mercury is 0.04 to 3 mg/cubic meter, people will chronic poisoning in 2 to 3 months. If up to 1.2 to 8.5 mg may induce acute mercury poisoning. If air mercury is 20 mg, that will directly lead to death. And 1mg of mercury is enough to contaminate drinking water 5454.5 kilograms. The LED lamp does not contain any toxic substances, is a completely pollution-free green light.
A wide range of LED lighting color temperature, color rendering index
LED provides almost any color temperature that enable provide red, green and blue colors of light as well as any kind. In addition, the incandescent lamp color rendering index of 95, a fluorescent lamp is 65-80, while the LED lamp can be> 80.