UV light is an invisible light, because it exists outside the ultraviolet light in the spectrum, so it is called UV rays. According to the spectrum, long ultraviolet light wavelength is between 320nm to 400nm. The centre number is 365nm and 395nm. UV flashlight with this wavelength is used in many fields such as fluid system leak checking, oil spots detection, industry glue solidification, fluorescent detection, criminal investigation, medical treatment, etc. How 395nm/365nm UV flashlight Works a, Oil substances shine fluorescent under UV light, therefore, 365nm UV flashlight can check grease, oil dirt. b, many ore will fluoresce under ultraviolet [...]

Now, many people love to go cycling with friends for a short or long trip. Here is a list of kits you may need when go cycling. ? 1, Helmet: Required to save your life when things go wrong; lots of riders have teach us lessons with their blood. ? 2, Sunglasses/ wind-proof glasses: Required, when riding in direct sunlight for a long time, your eyes may get hurt without protection; in addition, if you do not ware glasses, your eyes are exposed to mosquitoes, insects, etc. ? 3, Scarf: very useful, mainly proof road dust, dirt when riding on [...]

Amber raw materials are very precious. If there is amber whose price is much lower than the market price, it is likely to be imitations. Amber collectors hear most the purple graph, or rather, when shining the amber with UV flashlight, you can see fluorescent graph. This way is aimed to tell whether the amber is real. So, to the natural amber lovers, how to tell the whether the amber is real? Here is a list of methods to refer. ? Tips to Tell Whether the Amber is Natural ? 1. Sound comparison: when rub natural amber in hand, you [...]

To the new strong flashlight users, there may be some mistakes when using the new lithium batteries. Here, I will walk you through the most common mistakes. No.1: "exhausted, fully charged" Admittedly, flashlight lithium batteries have memory effect, but its memory effect is minimal, and even the manufacturer ignore this memory effect. However, in actual use, you might find that time lithium battery life will become shorter. Why does this happen? In fact, the lithium battery uses an active substance which ages over time. ? Generally speaking, lithium battery for the strong flashlight can be charger and discharged 300 to [...]

HID successfully developed in 1986, and officially released in 1997. Now, HID is a basic part in BMW, BENZ, AUDI, LEXUS, and more cars. ? How HID Works In a quartz tube filled with a variety of chemical gases, among which the majority are Xenon ,iodide and some other inert gases. The electricity added to the two electrodes are increased from 12 volts to 23,000 volts so to make the Xenon electrons drift and generate light source. This is called Gas Discharge. The super bright arc light generated by Xenon has similar color temperature to daylight. The working current for [...]

At the point when people are going outside, they generally set up a spotlight or headlamp, perhaps it is not entirely obvious, when evenings falls, this little thing turns out to be vital. Actually, there are different sorts of flashlights, and they have distinctive features. Here, this article will concentrate on the colors of the lights to revel the use of different flashlights. ? White light ? Let us start with the white light-the most common light in the nature. At the point when LED raised, white light got to be the mainstream light. White light is near to the [...]

Tank007 UV flashlight can check the leaks in air conditioner and other fluid systems. ? Fluorescent leak detection can be a quick, easy, safe and accurate way to find all leaks in air conditioning and refrigeration systems and other fluid systems. Add a little fluorescent dyes to fill the air conditioning / refrigeration or industrial fluid system, run the system to make the fluorescent dyes circulate in the system. ? Fluorescent agents gather at the leak point along with the refrigerant or fluid in the system. When shot with the UV flashlight, fluorescent agents will look yellow-green. This way can [...]

Many people need a hunting flashlight but they do not know how to choose the flashlight, they may first searching some information about the brands. To be frank, this is a good way to choose hunting flashlight, but aside from the brands, there are some other factors you need to consider as well. Here are some tips. ? After all, the most expensive is not the best fit. It is also true in choose flashlights for hunting. You need to think about what specific circumstances do you need to use the flashlight first, and then the other factors. ? Different [...]

As is known to all, before flashlight, people can only use lantern to light at night, even they went out at night, they have to carry a lantern with candle inside, or oil lamp with them. It is very inconvenient for people to walk, camp, or work at night. After LED was invented, everything changed. Here, let’s talk about the history of LED flashlight. ? After Edison invented the light bulb 100 years ago, a man named Hubert Americans invented the first torch in the world. Flashlight (English name: flashlight or torch), referred to the torch, is a handheld electronic [...]

Ordinary people grip flashlight always palm down , just like holding a fishing rod. However, in the US dramas, the way police grip flashlights, just like holding a dagger which is ready to piercing into others chest at any time. In fact , no matter what ways of you use to grip, flashlights can shine from floor to ceiling. However, the way that US police use to grip flashlights feels strange. Do they have a special reason to do so? Why the police of United States is always palm facing up when holding the flashlights? Indeed, police using this way [...]