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200mW 405nm Adjust Focus Blue-violet Laser Pointer Pen

200mW 405nm Adjust Focus Blue-violet Laser Pointer Pen
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Special sale stock left: 1000pcs Time Left: 10 days 22 : 22 : 22


The portable and with richer applications laser pointer is a good guide for your traveling, and a good tool for pointing to the faraway target or stars and sending out the SOS signal. Here, we recommend you this TSF-302 200mW 405nm Adjust Focus Blue-violet Laser Pointer Pen Black (with One 18650 2200mAh 3.7V battery). Also, it always widely used it to point at the faraway target or stars. This green laser pointer is also the best gift for friends and families. What's more, black body makes the laser light in the night vivid and unique.


WDLasers. Widelasers.com is the only official online store to offer the WDLasers.

Quality Guarantee

Every WDLasers Laser Pointer offered by Widelasers.com is all full of power. Also they are with unparalleled resonable price.

Easy to use

WDLasers High Power Laser Pointer is powered by 18650 battery. Touch the on/off button,then it works, so easy.

You will get

One WDLasers High Power Laser Pointer,18650 battery and Battery Charger. Also you will get our best wishes!

Technical Specs
Brand: WDLasers
Model: KREE
Light Style: Been Light
Light Color: BLUE
Wave Length: 405nm
Output Power: 200MW
Material: Aluminum
Switch: Button
Battery: 18650 battery
Dimensions: (5.63 x 0.87)" / (14.3 x 2.2)cm(L x D)
Weight: 9.31oz / 264g

Laser safety level

Class I

Inherently safe; no possibility of eye damage. This can be either because of a low output power,or due to an enclosure preventing user access to the laser beam during normal operation.

Class II

The blink reflex of the human eye will prevent eye damage, unless the person deliberately stares into the beam for an extended period. Output power may be up to 1 mW.

Class IIa

A region in the low-power end of Class II where the laser requires in excess of 1000 seconds of continuous viewing to produce a burn to the retina.

Class IIb

Lasers in this class may cause damage if the beam enters the eye directly.This generally applies to lasers powered from 5–500 mW. Lasers at the high power end of this class may also present a fire hazard and can lightly burn skin.

Class IV

Lasers in this class have output powers of more than 500 mW in the beam and may cause severe, permanent damage to eye or skin without being magnified by optics of eye or instrumentation.

Safety Recommendations for Laser Pointers

The use of laser pointers has become widespread. The laser pointers are useful tools for educators in the classroom and at conventions and meetings. However, due to the low cost and ubiquitous supply, these laser pointers are now being purchased and used by the general public, including children, and used in ways not intended by the manufacturers. As a result, serious concerns about the hazards of laser pointers have surfaced.

Potential Hazards

The hazards of laser pointers are limited to the eye. Although with most visible lasers, the largest concern is potential damage to the retina, most laser pointers are not likely to cause permanent retinal damage.

Responsible laser owners should take some time to fully understand the FAA regulations surrounding the use of laser pointers. There is an extensive Wikipedia article about Lasers & Aviation Safety.


1. Never use your laser pointer in the vicinity of airports, highways, construction sites or anywhere individuals need to constantly pay attention to their work for their own safety. A split-second distraction--a sudden laser light in a plane cockpit, for example--can be disastrous;

2. Never look into the laser beam, use productive glasses(available in our store);

3. Please keep out of reach of children, this is not a toy;

4. Please do not keep open for a long time, otherwise easy to damage the light bulb;

5. Please do not light laser pointer continually in 30 seconds, it will affect its lifetime for prolonged use;

6. Please do not perform the installation in the dusty environment;

7. Please remove the battery from the laser pointer when not in use;

8. Be especially cautious around high-powered lasers, like green laser pointers used for stargazing. They are far stronger than the red pointers commonly used during lectures;

9. Customers can buy and use it by following the local laws and regulations.


by Kelsey on December 12,2020

I am an astronomy enthusiast, I bought it occasionally, it is suitable for me to observe the stars, I like it very much

by Tobias K*** on October 08,2020

The effect is better when used at night, a very bright one, as described.

by George S*** on September 03,2020

I bought 20 sets of products for the company at a time. The quality is very good and the delivery speed is very fast. There is no quality problem. I will buy again.

by Jozsef B*** on August 28,2020

The small blue one turned out to be good too. Among so many high powers, this low power one is my most satisfied one.

by victoria w*** on December 20,2018

Received the goods, very satisfied, also sent a battery and charger, a great shopping, very good.

by Christophe L*** on November 25,2017

Wow,When I received the parcel I think the appearance is so beautiful. The article is complete,so I used it too quickly, the light is bright, I like it very much

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