Specifications: 

Produce clearly visible green beam in the dark  

Power saving, durable and reliable   

Perfect for astronomy, presentation, tutorial, and office meeting use  

With a high power beam output, and quality construction, this pointer is guaranteed to get the job done

Output Power: 10mW

Working Voltage: 3.0V

Wave Length: 532nm

Power Supply: 2 x 1.5V AAA batteries

Life Time: 8000-10000 hours

Material: Aluminium Alloy

Size: 13.5 x 167mm/0.53 x 6.57in (Dia. x L)

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 from the side in moderately to dimly lit conditions.

NOTE:

The laser is bright enough when you light it in normal temperature, so you had better do not light it continually in 30 seconds

Avoid direct eye or body exposure to laser beam (any contact to the human eye can cause permanent damage).

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 Green Laser Pointer Pen (Battery not included)