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 [...]

The manufacuturer recommends people should to use the jade expert flashlight to identify and distinguish the stand or fall of lapis lazuli.With professional the jade expert flashlight we can see the color of lapis lazuli is blue, the lapis lazuli mineral content? determines its color.The high quality lapis lazuli is pure blue color, with no crack and the quality of a material is very exquisite,it can be used to make jewelry. Secondly,we can see the texture of the lapis lazuli.The lapis lazuli with dense texture are very sensitive and it has no cracks.We can't see crack by naked eye,so we [...]

LED flashlights are common products in our daliy life. In the following,a professional flashlights manufacturer will tell us some precautions we should pay attention to when using a flashlight. Do not shine your eyes directly with the light, it's harmful to your eyes. Do not use it with over voltage. The voltage should not more than 4.5V.Battery cathode forward,do not invert them, or the circuit boards may be burned out. Pay attention to the changes of the flashlight temperature, non-professionals do not open the circuit boards.Please make sure the positive and negative end when charging, do not over-charge or over-discharge, [...]

We all need a good UV fishing flashlight when fishing at night.? For some enthusiasts who love night fishing , the light source is very important, a good UV flashlight can not only show the floats clearly, but also induce the fish. Is it better to use UV or Blue flashlight when fishing at night? Many people may choose Blue light. Actually it is a misunderstanding, UV light will be much better. For the following reasons, Tank007 UV Flashlights just like these: Light? Source：UV LED LED Quantity：5pc LED Wavelength：365nm Total Power：1W Output Power：500mW Material ：aircraft – grade aluminum Battery：? 1*AA [...]

If the UV flashlight used for money detect accidentally irradiation directly to injury skin, will harmful to the skin?In our childhood,have appeared very small UV flashlight, at that time didn't popularize ultraviolet ray can have harm to the skin, the junior partner in play always exposure to the eyes or skin. Is this money check UV flashlight harmful to skin at all? Ultraviolet intensity of money check UV flashlight was much lower than the sun's ultraviolet light intensity, won't produce the near future or long-dated and harm to human body.ultraviolet light in money check flashlight attenuation is as high as [...]

Strong torch is a good assistant of the people who go out early and come back at dusk. Because the weather is getting hotter and hotter with the summer coming, the clothes of girl’s become less and less. How to strengthen the self prevention becomes the compulsory subject of every female, that is why that some women's self-defense items is selling up on the Internet. According to the related experiment, the strong torch is the best self-defense tool of female. Women can take the strong torch in their hands when they get an evening walk, on the one hand, the [...]

If the LED light doesn't work sometimes, how can we do? We usually can ask the LED flashlights manufacturer for after-sales maintenance.While there is also something we should bear in mind, do not turn on the flashlight when it is charging. Because it's easy to burn out the LED light. Tank007 LED Flashlights manufacturer adopts the USA CREE LED lights. Compared the CREE Q5, R2, R5, T6 lights, we will find R2 has the best light-focusing effect and the light spot of T6 is the largest and brightest. At present, the highest grade LED chips is T6. It can be [...]

Why should a torch be sent as a gift in Valentine’s Day, and what’s the point? The torch always represents light and promising traditionally, it has the meaning of promise, brightness and happiness as Valentine’s Day’s gift. According to the lunar calendar, the Chinese Valentines Day is on August 2nd this year. The Chinese Valentine’s Day, alternate name Double Seventh Festival, is the most fun holiday for couples. It originates in China and now is the traditional festival of Chinese regions and part of the East Asian countries affected by the Han culture, which is celebrated on seventh day of [...]

How to use the rechargeable LED flashlight? LED rechargeable flashlight using precautions: Don't charge parallel, otherwise it will produce irregular charging current. Can not use battery reverse to make short-circuit. When the battery is fully discharged, the charging time should be extended to reach the saturation power. Store the battery in a cool dry, the temperature not higher than 45 ℃ environment In case the battery is fully charged or half full, do not store a lot of battery-intensive Do not touch acid gases, to avoid the fire Do not incinerate or disassemble the batteries, which are corrosive chemicals will [...]

In the past 13 years, TANK007 not just deal in outdoor flashlight products, but also devote to popularize outdoor lifestyle and promote development of outdoor industry with joint effort of business counterparts. ??? Flashlight derives from creative oriented and outdoor experience. TANK007 flashlight has reached professional standard? in research、design and workmanship, on the material selection, TANK007 bring in excellent performance hi-tech top-level material; on the product design, TANK007 pay attention to originality; for outdoor lighting tools , to make sure the quality’s stability and reliability, it increased more functions, such as high brightness and long beam distance, good water-proof performances [...]