The attenuation of LED light source is slow, and the attenuation of 654.38+00000 hours is only 5%. Under scientific and reasonable conditions, the service life can reach 50000 hours. The power of the whole machine does not exceed 38 watts, which is quite energy-saving. After one year, 500 yuan can save about 400-38 watts, which is quite energy-saving. You can save about 400-500 yuan in a year. Traditional projectors are generally above 200W or even higher.
2. The maintenance cost of 2.LED projector is low. ?
Due to the long life, low calorific value and high reliability of LED projectors, the maintenance and after-sales cost of the whole machine is much lower than that of traditional projectors. It does not need frequent regular maintenance of traditional projectors, high maintenance parts costs and so on.
3.LED projector is more convenient to use.
LED projector is small and portable, with rich functions and strong interoperability with portable digital devices. Can connect portable digital devices such as computers, mobile phones and PDA; You can also insert mobile storage devices such as SD card, USB flash drive and mobile hard disk; It supports the direct and smooth playback of most multimedia files (including RMVB files) on the market, and is an ultra-portable multimedia player and projection device.
Extended data
Projector bulbs are expensive consumables and have a certain service life. If used for a long time, the light bulb will age. Replacing the light bulb is a problem that projector users must consider, which is also a big disadvantage of LCD TV compared with projection. For many years, major projection manufacturers have been committed to developing light bulbs with longer life.
The emergence of LED projection technology has opened up a new situation for the development of projectors. Compared with the traditional projector, the biggest advantage of LED projector with LED light source is that it doesn't need to change the bulb frequently, and its bulb life is 10000-20000 hours or even longer, so users don't have to worry about the loss of the projector bulb at all.
However, although LED light source is called cold light source, it is particularly afraid of heat. If the heat generated by the chip itself cannot be eliminated or dissipated in time, the temperature will rise higher and higher. When the chip temperature exceeds 100 degrees Celsius, the luminous efficiency of LED chips will be greatly reduced, resulting in light attenuation. When the temperature exceeds 150 degrees Celsius, the LED chip can be burned instantly.
Therefore, only with good heat dissipation can the long-life characteristics of LED light sources be truly exerted. Otherwise, the LED chip will decay sharply in a short time, and its life may be worse than that of the traditional metal halide lamp. Heat pipe heat dissipation and heat sink technology is an inevitable choice. Referring to Rexain's patented technology, we can find that only this technology can guarantee the long life of LED.
As the LED is a cold light source, it will not generate a lot of heat like a metal halogen lamp, which simplifies the complex light path structure required by the original light source, thus reducing the requirements for the projector cooling system and making it much smaller than the original one. From a small point of view, LED projectors are generally kept below 1 kg, and some even weigh only about 0.5 kg, which is easy to carry and move. And the noise is much less.
References:
Baidu encyclopedia -LED projector