500mW 447nm Waterproof Adjust Focus Blue Laser Pointer Pen (1 x 18650 Battery)

Specifications:

• Output Type: Adjust focus, continuous output and working time is longer than ordinary laser pen
• Laser Wavelength: 447nm
• Optical Power: 500mW Classâ…£
• Point Shape: Circle
• Spot Diameter: 20mm±1mm (at 15metre)
• Beam Roundness: >90%
• Beam Radiation Angle: 1.5-2.5mrad
• Operating Current: 750mA
• Working Voltage: DC = 3.7V
• Trigger Voltage: DC = 3V
• Power: 1 x 18650 Battery
• Waterproof: 25 meters
• Size: 140 x 25.5mm / 5.51 x 1.00in (Dia. x L)   
• Working Temperature: 0°C~+30°C / 20-80RH
• Storage Temperature: -10°C~+50°C / 93-95RH   
• Body Material: Metal
• Body Color: Gray

Features:

• This blue laser pointer pen is well tested and high quality
• This 500MW blue laser pointer pen is easily to use, only need to push the back button then you can see striking blue beam of light shoot forth. The blue laser pen can point at any targets, such as photos, blackboard, video monitors and so on
• This waterproof laser pointer pen is the best choice for teachers, professors, doctors and so on
• The 500MW blue laser pointer pen is clearly visible in the dark
• This The 500MW blue laser pointer pen has very good waterproof properties, it can light match within 25 meters

Details:

• This 500MW blue laser pointer pen is delicate and compact

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

• Launch the blue laser from here

• Push the light button switch, and the pen will work

• The laser of this 500MW blue laser pointer pen 

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 or 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
• When do not use it, please take off the battery from the laser in order to avoid the damage
• In some countries these laser pointers (especially the higher powered ones) may be illegal to own and/or use. Therefore, 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 need to agree to incorporate this notation in the product description, so that any potential buyer can be well informed before make a purchasing decision

Safety Considerations:

Laser pointers are effective tools when used properly. The following considerations should be observed when using laser pointers:

• Never look directly into the laser beam
• Never point a laser beam at a person
• Do not aim the laser at reflective surfaces
• Never view a laser pointer using an optical instrument, such as binocular or a microscope
• Do not allow children to use laser pointers unless under the supervision of an adult

Use only laser pointers meeting the following criteria:

• Labeled with FDA certification stating "DANGER: Laser Radiation" for Class 3R lasers or "CAUTION: Laser Radiation" for Class 2 pointers
• Classified as Class 2 or 3R according to the label. Do not use Class 3b or 4 products
• Operate at a wavelength between 630nm and 680nm
• Have a maximum output less than 5mW, the lower the better

Package Included:

• 1 x 500mW 447nm Waterproof Adjust Focus Blue Laser Pointer Pen
• 1 x 18650 Battery
• 1 x Charger