How to identify projection light bulb true and false?
The first category is launched by the projector manufacturers in the original packaging and special lighting, lamp holder signs it is a sign of the manufacturers, called the "original package". The original package is the projector factory such as EPSON, NEC, SONY, SANYO and other companies to lighting manufacturers such as PHILIPS and OSRAM to order the projector bulbs, lamp holder and packaging box according to the production of different models, and then through formal channels to users for sale. Its quality and service life have been strictly tested, the product quality is absolutely guaranteed, basically can achieve the projector manufacturers mean the average use time. Users are advised to use this type of light bulb as their first choice. But because of the layers of the channel plus profits, the price is generally high. And the loan source is very small, it is difficult to buy.
The second category is from other sources to live on the market projection bulb manufacturers produce bulbs, such as PHILIPS, OSRAM, etc., characterized by no lamp rack, the industry called "original bulb."". The original light bulb is generally smuggled into the country, so the price is lower than the original one. What's on the market today is basically this "original" bulb". Compared with "original bulb", the service life of "original bulb" is not far from each other. But some of the so-called "original bulb" is the manufacturer's defective or projector manufacturers test light bulb, it is difficult to judge the simple appearance, life expectancy is relatively short, in the purchase must pay attention to avoid being deceived.
The third category is Taiwan manufacturers such as Joe's production of Taiwan lighting, which can substitute UHP and VIPR light bulb, but life is much less than the original bulb, generally in 500 hours; the single bulb price is low, but the average cost is very high, in 3 yuan / hour, to more than 1-2 Yuan original lamp. Because of the short use time, the fast attenuation of brightness and the frequent replacement, it will bring inconvenience to the users. Caution users to buy this type of light bulb.The fourth category is homemade bulbs. At present, the South China Sea, Beijing Aihua Dandong Xinya Wright (original three factory Nanhai Huaxing) can produce alternative UHP lamps, common domestic lamp bulb life is not long, and Taiwan almost extinguished lamp, use easily in the process of unknown reason, lamp explosion rate. However, homemade light bulbs have been printed on UHP by many unscrupulous businessmen, posing as the original UHP bulbs.
The fifth type is the refitted bulb. For example, use VIPR instead of UHP light bulb, HSCR into UHP light bulb, UMPRD into NSH bulb, etc..The sixth category is the old bubble or counterfeit light bulbs, such as illegal traders installed bubble bubbles and Japan, Taiwan and coastal areas such as domestic imitation projector bulb. Its characteristics are rough workmanship, short life, poor compatibility, the use of the process will be unknown reasons extinguished. Illegal traders are generally used with a wick lamp bubble down or installed in the lamp wick wick domestic sale. At present, MITSUBISHI, PLUS, EPSON, Panasonic and so on, most of them are installed wick bulb, it is recommended that users seriously identify when buying, carefully fooled.