What are the advantages and disadvantages of LED lights?

New green light source: LED adopts cold light source, with small glare, no radiation and no harmful substances in use. LED has low working voltage, DC drive, ultra-low power consumption (single tube 0.03~0.06W), and electro-optical power conversion is close to 100%, which saves more than 80% energy compared with traditional light sources under the same lighting effect.

LED has better environmental benefits, no ultraviolet and infrared rays in the spectrum, recyclable waste, no pollution, no mercury, safe to touch, and it is a typical green lighting source.

Long service life: LED is a solid cold light source, encapsulated by epoxy resin, which is vibration-resistant. There are no loose parts in the lamp body, and there are no shortcomings such as easy burning, thermal deposition and light decay of the filament. The service life can reach 60,000 ~ 65,438+10,000 hours, which is more than 10 times of the traditional light source. LED has stable performance and can work normally at -30 ~+50℃.

Multi-transformation: LED light source can make use of the principle of three primary colors of red, green and blue, and under the control of computer technology, make the three colors have 256 gray levels and mix them at will, which can produce 256X256X256 colors (i.e. 167772 16) and form a combination of different light colors. The light color of LED combination is changeable, which can realize colorful dynamic change effect and various images.

Disadvantages:

Heat dissipation, if the heat dissipation is not good, the service life will be greatly shortened.

The power saving of low-end LED lamps is still lower than that of energy-saving lamps (cold cathode tubes, CCFL).

The initial purchase cost is high.

Due to the strong directivity of LED light source, the special optical characteristics of LED should be considered in the design of lamps.