Many customers come to ask us if we don't like to buy a laser pointer.Tell you today about our website return policy.Our official return policy is：We accept returns of defective item within 180 days since payment date with an authorized RMA #. Please contact our customer service first with the info for returns. In order to simplify the procedure and save time, please provide clear pictures of specific problems for reference as you contact us at the first time. Any returns will be refused without the RMA#. Upon receiving the returned item, we would either send you a replacement or refund to you.All returns must be in their original or equivalent packaging with all miscellaneous accessories included.We will decide whether the good can be refunded according to the actual condition. If the good can be refund, please use the most economical way and we will compensate your transportation fee.And one customer also tell me: Do you have different return policies or warranties for different products?We have a 180-day limited warranty that provides for either repair or replacement of merchandise that has been confirmed as defective item by the product manufacturer.Please make sure that you contact us before sending back the item. No matter what you need, a replacement or refund, please do not hesitate to let us know. We promise to reply promptly to make you all satisfied.
Green lasers can be used for a variety of roles. They can be used as pointing devices. The ability to form a continuous line in the dark is an added advantage; this has lead to its usage as rescue lights as it can be seen from miles away.It as been used for laser light shows. It is also used for sky gazing as a person can pinpoint a star by using the green laser. It can also be used in high-tech weapons for aiming purposes. Because of its high range, Green laser pointers can be equipped in different kinds of weapons. In the movie Alien vs. Predator it was used as a pointing device on some G36k carbines.The green laser has many advantages. It is fifty times brighter than a red laser because of which it can be seen from miles away, this helps in being rescued if a person is lost. High and low temperatures do not affect the performance of Green laser pointers so in case a person is lost in a desert, he can still use Green laser pointers to call for help, in other case, even if a person is lost some where in mountains all covered with ice, he can still use it.
This portable red laser pointer pen will be an excellent indicator to replace the pointer. It can be used in the teaching. It is compact, light-weight, and easy to use. So, you can carry it anywhere anytime. Moreover, it will be an excellent navigation tool when you are traveling. It is a good tool for pointing to the faraway target or stars and sending out the SOS signalToday，we want to told you that this one is best for teacher.This one 5mw red laser pointer is also very clear during the day. It can be arbitrarily indicated on the ppt or on the blackboard. The students can see it. This is the hottest teaching laser pen sold on our website. You can also worth having.In my opinion, the appearance is also very important. Unlike other black appearances, this is frosted.Looks very texturedHere is web：https://www.widelasers.com/p/5mw-650nm-red-light-laser-pointer-pen-black-379.html
Are you looking for this kind of the item that can stage out or target long distant objects with its high quality beam of mild? The 5000mW 450nm Burning High Power Blue Laser Pointer Pen is such the power blue laser pointer pen that has been designed with the newest technologies. This particular type of product produces output Wavelength of 450nm that tends to make you able to see the objects clearly. This power blue laser pointer pen is also easy to use on.You can use this pen even for the teaching functions. If you are a instructor and you want to make tension more than some specific subjects this particular kind of product can be the very best option for you. As soon as you will use this, you will feel extremely comfortable as nicely as relax.But is all of this safe? Can shining laser beams at any time lead to issues or have unfavorable consequences? The solution is sadly Sure. Laser Pointers are not toys, regardless of what many people think about them, and they can not only hurt people or animals, but also direct to authorized trouble as nicely. Now, don't go throwing your pointers in the trash just yet. All you need to do is maintain a couple of laser usage guidelines in mind and you are in the distinct.How do you maintain your cat entertained? Following all it's not the same as a canine; you can't perform capture or fetch with a cat - or can you? To maintain your cat enthralled and intrigued in playing with you, you require to have a difficult and ever changing atmosphere. Now before you go off the deep end, it's not as poor as you believe. All you really need to do is to have a few cat toys out at a time and rotate them to maintain your cat intrigued. It doesn't have to be costly toys both. String, paper, balls and containers are all great cat toys. Focusable eco-friendly laser pointer offers the very best chance to provide a fantastic presentation to any quantity of individuals. You will be able to show that you are a head when it comes to technology. Focusable eco-friendly laser pointer is driven by a battery which that come s with it. The battery mainly comes while it's fully billed and can provide energy constantly.When using these green laser pointers, there are certain security actions that you ought to here take care of. Do not use other optical devices to view the beam. This will harm your eyes. You should also make certain that it is positioned in this kind of a way that it is much less most likely to stage at somebody's eyes. Eco-friendly laser tips emit beams that are harmful when directed to the eye. Get your green laser pointers and use it as safely as feasible.
Blue laser pointer is actually an ideal tool for burning stuffs, with adjusted the laser beam focus. The strong powered laser can set fire on matches, paper or other imflammable objects just like a lighter can do but with the burning laser, you'll be able to light the stuffs at certain distance without getting closed.With countless reports critized on the high power laser pointer hazard to human bodys. I would insist that anything that can burn up a fire is dangerous at the same degree, a normal lighter or knife also do harm to humans but that don't mean people should not use these tools. Great power tools brings greater danger, proper operation is the most important thing before you use a burning tool.In fact, class 3 or 4 laser pointers only be dangerous when the shining laser lights shoot or reflect towards human body, especially the eyes. The higher power, the exposure time to cause damage will be shorter. Avoiding laser beam just like avoiding the fire burns you, that's enough to keep you safe, a professional laser goggle will be a plus to keep your eyes safe if you need to stare at the shining laser for a long time.Class 4 laser pointers are the ideal choices to used as a burning tool. Compared with green or red laser pointers, blue laser beam is dim but more powerful to able get stuffs burned.
Red line laser and line laser optical lens system, generating a bright red line for alignment and calibration. This red line laser is easy and convenient operating.Red line consists of high quality red laser diode, durable aluminum alloy body material, excellent quality lens, constant power circuit boards, and wire components. This laser adopts the latest communication technology production method to achieve high performance industrial applicable alignment laser. Red line laser adopts dedicated DC power supply, having a strong anti-interference, high stability, and slow start inrush current suppression. It is especially suitable for harsh operating environments, can effectively guarantee the stability and service life of alignment laser. Red line laser high good result in direction and high brightness, can be widely used in health care, military, security, stage light and measurement etc. The fine and accurate red reference line is useful in stone cutting, textile, metal sewing machine, package machine etc. This portable designed laser device is convenient, intuitive and practical, easy to install, stable and reliable. The operation of red line alignment laser can greatly improve the work efficiency in line targeting and positioning.
Green laser lines produce laser alignment products that are newly developed. The use of primary imported glass-coated cylindrical lenses and laser diodes ensures a distance of up to 6 meters of laser line. A typical line alignment result is usually obtained with a target distance of 3-5 meters. This green laser line is specifically designed with a fixed focus. This laser alignment will produce an optimal line generation result for a given working distance after the correct selection of lens power, output power and aiming distance. It is always equipped with a high performance ACC drive board. It has the advantages of high stability, high reliability, strong anti-interference and long service life.This green line laser is aimed at the projected laser beam with a particularly uniform distribution of non-Gaussian light. It can be customized with laser fan angles. This advanced alignment laser is widely used in industrial equipment, precision machining, measuring equipment, image processing systems, textile processing.By using the highest quality green laser diode and glazing design, this green laser line generation laser alignment tool uses the production technology and technology of telecommunication lasers to enter industrial laser production. The high-performance green line laser alignment produced has unparalleled advantages in various industrial production lines.
How much is laser pointer speed?Ordinary light propagation speed in the air is 300,000 meters per second. Laser propagation velocity in air is 300,000,000 meters per second. Laser propagation velocity in the air is 3/4 of vacuum. Laser propagation velocity in the glass is 2/3 of vacuum.Safety measures of laser pointer operation:● Laser pointer at room temperature can up to the brightest begin using. The continuous lighting should not exceed 30 seconds.● Laser is harmful to eyes. Do not air at eyes illumination. Please wear appropriate laser safety goggles indoors or close to the blue laser pointer. Avoid direct pointing of laser pointer at eyes. Laser irradiation up 30mW cannot face the human body, in order to avoid accidental injury.● Keep laser pointer away from children, and prevent danger from the improper use of laser pointer. Remove the battery and saved when laser pointer is not in use.● Please pay attention to battery or replace battery if found severely reduce of brightness of laser beam.● Do not continuous light laser too long (especially green laser), in summer it is best no more than 30 seconds. Please immediately stop use until it is completely cool if you feel laser pointer is hot. The best time to use high powered laser pointers in controlled time of 1 minute, turn off 5 minutes for cooling and then open. It can prevent excessive aging of laser pointer, or laser diode damage caused by overheating. These indications can protect laser pointers a longer serving lifetime.
Why laser diode and crystal of laser pointer can be easily burnt out?Long working hours is a key point which can cause laser diode burnt out. Due to long working hours, laser temperature increases with the increase of working hours, resulting in damage to the laser diode and crystal.When laser pointers require preheating? Laser pointer crystal is composed of yttrium vanadate crystals (YVO4), of which yttrium vanadate crystals are very sensitive to temperature, stable operating temperature at 20 ° -30 °, yttrium vanadate crystals stimulate operating temperature 20 °. When the outside temperature is below 20 °, yttrium vanadate crystal would be difficult to start. The lower the ambient temperature, the longer startup time will be spent on laser pointers.Why green laser pointer power will decay at a high temperature?Green laser pointer consists of 808nm laser diode and crystal, operating temperature of 25°, laser diode wavelength 808nm±2nm. When operating temperature is up 25 °, laser diode wavelength will be shorter, thus laser power reduces along with wavelength change. The longer the operation time of laser pointer, the higher the temperature and the power will also decay.
What is the difference between red and green laser pointer?Wavelength difference. Red laser wavelength is between 635nm to 780nm. Green laser wavelength is 515nm, 520nm and 532nm.Different light emitting mode. Red laser pointer emit light directly from laser diode, without extract devices. It emits bright light directly from red laser diode. 532nm green laser light is emitting from 808nm laser diode pump crystal.Why blue violet laser pointer light spot is very weak?According to the principle of lasers, in case of same power, the shorter wavelength laser pointer can emit brighter light than longer wavelength one. However, the perspective of 532nm wavelength light is more easily absorbed and more sensitive, light emitting from 405nm blue violet laser looks much weaker to human eyes.Why red laser beam is not as visible as green laser?Shorter wavelength laser has great loss in the atmosphere, thus green laser pointer is more easily visible than red laser beam. Green laser light is more easily absorbed by dust in the air, green laser pointer is more easily reflective, and thus beam of green laser pointer is much more visible than red laser pointer.How long can green laser pointer can be lighted?The continuous lighting time of green laser pointers will vary depending on output power. Portable green laser can be lighted within 10 seconds under formal working temperature of (25 °). If operating time is extended, the output power might be increased in attenuation, until not bright. Long operation time can destroy laser diode and crystal, or even burn out laser diode. Industrial alignment laser can be operated 24 hours continuously a day under room temperature and correct cooling system. The portion of alignment laser should be fixed in operation.