Jewelery appraisal by light flashlight to identify methods of glass imitations, now Hetian jade increasingly scarce resources on the market, are increasingly leading to rampant fraud, counterfeit goods and nephrite glass imitations in nature and ultimately, when purchase Hetian jade, required all kinds of jewelery such as flashlights and other identification aids to be carefully distinguished. Now we have to analyze several characteristics of glass imitation by several features to analyze how to identify the imitation: Check glass products by eyes, commonly contain air bubbles inside, for the relatively small bubbles resorting jewelery appraisal flashlight and magnifying glass to observe. [...]

is there flashlight can control the wavelength of light? Several customers have asked this question, uv flashlight use wavelengths to distinguish effectiveness of the flashlight, 395nm?wavelength and 365nm uv flashlight effect will certainly vary, but there is no flashlight can control wavelength of the light. Now introduce 365 wavelength of a uv flashlight. 365nm only some weak white light , in general, very little visible light , almost all kinds of authenticity products can use it , 365NM brightness , although weak, but the fluorescence effect is very clear , because the UV light is a special light source , [...]

"Look at my flashlight, not only the strong light but also an ability of leaking detection of liquid, it works really well." a driver in Tianjin talked the "new weapon"---Ultraviolet flashlight with others after car detection In order to ensure the stable quality of locomotive,a section of a highway in Tianjin buy a? lot of UV flashlights with detection function.The UV flashlights producted by Beijing guodian electrical testing technology research institute co., LTD has 32 gb memory card, the drive use it and make a video when found fault on the locomotive key parts when detect. 6th Apr. the driver [...]

Modern jade carving confuse the eye, need to use specialized tools to identify jade authenticity. perhaps those who think they know jade very well have been cheated to the last , if people will not skeptical, would not be so gullible. Experts have said, now with advances in technology, a lot of jade can be forged, in order to Betting-stone and identify jade , it's necessary to carry jade identification flashlight. Now on the market it's difficult to distinguish false jade, people have a smattering of knowledge for jade perhaps is the reason why deceived, do not think he would [...]

Expert Jade Flashlight can help to evaluate the quality of the jade. For the same qualtiy jade, the heavier and bigger one will be more valuable. For the evaluation of Nephrite, color takes a large position.The color should be uniform, no impurities and with rich tones. The best would be the white jade, it has the highest value, other others would be relatively worse. For the white jades, the whiter it is, the more values it has. In oppsite, the more black the better. Luster is very important for the quality of Nephrite. According to the light emitted by flashlights [...]

Using flashlight can distinguish tourmaline yu price's level. Also choosing good jewelry can bring a good mood, not only beautiful, but also to attract outside forces, why we not to do it! Generally, tourmaline real price is determined by its own color, workmanship, purity of the color, as a jewel in the high-end market, also need pay high attention to these aspects of its choice. According to Yu flashlight 45 degree angle irradiation can be seen in rings, pendants and more generally to the class monochrome, color uniformity for the best; necklace, bracelet jewelry generally variegated or multicolored best. This [...]