What are the advantages and disadvantages of Led lights?
Advantages of LED lights:
The light efficiency of LED lamps is two to three times higher than that of energy-saving fluorescent lamps and eight to ten times higher than that of incandescent lamps.
Leds have a theoretical lifespan of up to 100,000 hours, 100 times longer than incandescent bulbs and 20 times longer than fluorescent bulbs. (The overall life of actual LED lamps is lower due to other electronic components, but generally can be used for 10-20 years without changing the bulb)
Protect your eyes.
The LED tube in the LED lamp is powered by direct current and does not flicker at all. Ordinary fluorescent lamps using conventional ballasts have a low frequency flicker of 100 Hz, and energy-saving lamps using electronic ballasts have a high frequency flicker of around 3 to 30 000 Hz.
Disadvantages of LED lights:
The light fades.
The LED core is prone to localized (1 mm) high temperature, which reduces the luminosity after a period of use. Poor quality LED lamps may lose about 20 percent of their light every 1,000 hours. However, medium and high end LED lamps (through excellent chip and lamp cooling design + constant current source power supply) basically solved the problem of light failure, zero light failure or low light failure products have been on the market in large numbers. Light decay can be less than 3% per 10,000 hours, or almost zero.
The power of a single LED luminous unit is smaller and the total luminous amount (luminous flux) is lower. A combination of dozens or hundreds of units is needed to achieve the brightness of traditional lamps. This increases the cost and difficulty of production, and increases the failure rate.
The price is higher.
Currently, compared with traditional lamps (incandescent lamps and energy-saving fluorescent lamps), the price of a single LED lamp of equal brightness (strictly speaking luminous flux) is 2-5 times higher, and the price difference is even greater for high-power lamps. Although the annual economy of LED lamps is much higher than that of traditional lamps, the high initial one-time investment price will inhibit the purchase demand of some users who are not good at accounting.