Laser pointer has already take an important role in our daily life, it does provide human beings much support in various areas. With the development of laser diode technology, more and more high-power laser pointers are developed and the price of them is becoming so competitive that all people if needed can afford one. And because of that, the misuse of laser pointer brings many incidents, which should be punished seriously.

The first laser pointer was created in the early 1980s, a red laser pointer in very large size and cost hundreds of dollars. At the first beginning, laser pointer was used for educational and business presentation and optical demonstrations as an eye-catching pointing device with maximum power of 1mW. At that time, no optical problem was reported. Then it came small size laser pointers which are able to be handheld, and other attractive colors.

It is no doubt the shining laser beam can capture ones’ attention, makes one have difficulty leaving eyes from it, and all people who get to it would fall in love with it at once. It does bring much benefit and convenience for human beings as a helpful tool. But unfortunately nowadays, there are so many optical incidents caused by the misusing of laser pointers. Among those users, they are using laser pointers are for fun or even joke. Most of them are teenagers and habitual criminals. As juveniles, teenagers would never image the danger that a laser pointer cause unless it does happens. They hurt themselves by shining laser beam to eyes or staring at high-power laser beam directly, while some for fun, pointing at aircraft, moving vehicles or neighbors, leading serious incidents. While for habitual criminals, they already realize the harm of laser pointer but still keep on having such stupid behavior, with the fluke mind they would not be captured by police.

By concentrating all power on the thin laser beam, the laser pointer is so bright and powerful that it can cause temporary and permanent blindness. When a pilot or car driver is driving an aircraft or car and suddenly was shined into a piece of laser beam, he has to close eyes at once by ability. One can image how serious incident it would lead. All cabin members’ life are in danger, and big traffic incidents happens. This is all because of a laser player’s trick.

I am Jimmy and I am a laser enthusiast. I dreamed to have a high-powered blue laser pointer since I saw someone used it to burn match one day. There is nothing can be excited that dream comes true, thanks my dearest friend Jason, the gift he sent me is a 500mW blue laser pointer today.

He kept the secret all the time. When I received a parcel from FedEx courier, I was curious what was inside and noticed it was sent from Laser To, Hongkong,but I had never bought things there and no friends there, either. 


I opened it in a hurry and dare not to believe my eyes as soon as I saw it was my dreamed thing, a laser pointer. Then I can’t help shouting, OH MY GOD, it was 500mW blue laser pointer. After putting batteries inside it,  I turned on it at once, cool, marvelous blue beam, to be honest, I don't think there are words to describe its beauty. 
When I was thinking who sent me such big gift, my phone ring, it was Jason, my best friend.

Below is its Technical Parameters I copied from Laser To’s website,

Name Blue Laser Pointer
Wavelength 445nm
Output power 500mW
Laser class IIIB
Transverse mode TE00
Range in darkness (m) 300-8000m
M2 factor <1.2
Beam divergence, full angle (mrad) <3.0
Beam Diameter at Aperture (mm) <2.5
Spectral Line width (nm) <0.1
Polarization Ratio >100:1
Warm-up Time (minutes) <0.5
Operation Temperature (℃) 10～30
Storage Temperature(℃) -10～+50
Housing material Aluminum
Expected Lifetime (hours) 8000
Laser Head Dimensions(D×L, mm) Φ38mm×205mm
Cooling System metal heat sink
Operating voltage(VDC) 2×16340 batteries
Warranty time One Year

It is as big as a medium flashlight, a little bit heavy maybe because it is made of Aluminum.

Nearly forget the most excited experiment, burning match. Both of us wearing laser safety goggles, and found a blackhead match first, handed it about 10cm away from laser pointer, and turn on the laser pointer carefully, you know what, the match was fired within second. Then we moved it a little bit far away, about 50cm, the match was light in about 5 seconds. Remove about 1 meters, the time is longer, 15 seconds. Then we used it to pop balloon, cut tape and , it is a small case to it.

Here, I would like to share with you guys who need laser pointer for burning experiments. Blue laser pointer is the best one for burning experiments comparing with green and red in the same output power, as its wavelength is the shortest among them, and shorter wavelength is more readily absorbed. And black head match is much easier to light as black can absorb heat better than other colors.

Thanks Jason again for sending this magic match 500mW Blue Laser Pointer from Laser To.com.

There are numerous laser pointers in markets, but for stargazing, 50mW green laser pointer is no doubt the best tool for amateur astronomer and astronomical enthusiasts.

1.Why choose green laser pointer?

As we know, there are four visible colors laser pointers in total, which are blue violet, blue, green and red. One should know that green color is the most sensitive color to human’s eyes, it is 7 times visible than other colors in the same output power. That means, one 5mW green laser pointer seems 7 times brighter than one 5mW blue violet/blue/red laser pointer. In the dark night, green color laser pointer is easily to catch one’s attention and allow you to follow the dazzling forest green line to see far away stars or constellation. It is amazing to own this tool.

2.Why choose 50mW laser pointer?

mW is abbreviation of milliwatt, which is optical output instead of electrical input. The higher the output power, the more shining the laser pointer, at the same time, the more dangerous it is. According to laser pointer safety classified level, 50mW belongs to class IIIB. This level is relatively safe to human with proper caution. And the beam is bright enough to point at stars or other celestial objects.

3.How much of a 50mW 532nm green laser pointer costs?

It is usually USD $70~80 per piece of a 50mW 532nm green laser pointer from reliable supplier.

One need to pay much attention to the quality of the laser pointer, including diode, material, cooling system, guarantee time etc. Some black-hearted manufacture use second-hand diode to gain much more profits, which hurt customer’s right and health deeply.

And one also need to notice 50mW is harmful without suitable use and protection. Do not point at eyes or stare at the beam directly and leave it from Children.

Enjoy your stargazing laser time with the 50mW 532 nm green laser pointer.