300mW 405nm Waterproof Adjust Focus Violet Purple Blue Laser Pointer Pen (1 x 18650 Battery)

Specifications:

• This Violet Purple Blue laser pen is well tested and high quality
• Easily to use, only need to push the back button then you can see striking Violet Purple Blue beam of light shoot forth
• The Violet Purple Blue laser pen can point at any targets, such as photos, blackboard, video monitors and so on
• This Violet Purple Blue laser pen is the best choice for teachers, professors, doctors and so on
• Violet Purple Blue lasers are clearly visible in the dark
• It has very good waterproof properties  
• Laser Wavelength: 405nm
• Output Power: 300mW Classâ…£
• Point Shape: Circle
• Spot Diameter at 15metre: 20mm±1mm
• Beam Roundness: >90%
• Beam Radiation Angle: 1.5-2.5mrad
• Operating Current: 750mA
• Working Voltage: DC=3.7V
• Trigger Voltage: DC=3V
• Waterproof: 25 meters
• Working Temperature: 0°C to+30°C/20-80RH 
• Storage Temperature: -10°Cto+50°C/93-95RH   
• Power: 1 x 18650 Lithium Battery
• Size: 25.5 x 140mm / 1.00 x 5.51in (Dia. x L)  

Warning:   

• Laser is harmful to human's eyes, so please do not expose the laser light directly to human eyes. Please keep it away from children's store in order to avoid any accident
• If got hurt or caused any damage due to private improper use, users themselves should take the full responsibility

Detail:



Open-Back, convenient use.You can put the 1 x 18650 Battery here



The Violet Purple Blue laser will launch from here



Push the light button switch, and the  pen will work

Instruction:

• A laser pointer is a small laser designed to highlight something of interest by projecting a small bright spot of colored light onto it. The laser beam is not in itself visible from the side, but is visible as a result of light scattered by dust particles along the beam path. The small width of the beam and low power of typical laser pointers make the beam itself invisible in a reasonably clean atmosphere, showing a point of light when striking an opaque surface. Some higher powered laser pointers are faintly visible via Rayleigh scattering when viewed in moderately to dimly lit conditions

NOTE:

• The laser can be bright enough when you light it in normal temperature, so you had better not light it continually over 30 seconds
• Avoid direct eye exposure to laser beam (any contact to the human eye can cause permanent damage). Never expose your eyes or anyone else's to the laser beam
• Please put it away from children to avoid the danger by contacting. When do not use it, please take off the battery from the laser in order to avoid the damage by the children's contacting
• In some countries these laser pointers (especially the higher powered ones) may be illegal to own and/or use. Therefore, by purchasing these products YOU (the customer) accept all responsibly and liability to determine and fulfill the requirements and limitations of use or resale of these products in accordance with your country's laws and regulations. In the event of resale, you also agree to include this notation in the product description, so that any potential buyer can also make an informed purchasing decision.

Package Included:

• 1 x 300mW 405nm Waterproof Violet Purple Blue Light Laser Pen
• 1 x 18650 Battery