To get high-efficacy light effect， you can try this 5mW Middle Open Starry Pattern Purple Light Naked Laser Pointer Pen Red. Adopting high-grade diode， this laser pointer pen does well in producing vivid starry pattern. Thus， it is a good way to create romantic and warm atmosphere in the party or on the presentation. Powered by high-capacity batteries， this laser pointer pen is low power consumption， which can work for long lasting time. Furthermore， this laser pointer pen is designed with a switch， and it is convenient to switch on and switch off. No matter what occasion it is， this laser pointer pen can always give you high-efficacy experience. For this reason， this laser pointer pen is real a god choice.                                    Features            It gives out purple starry pattern lightIt is a good way to create romantic and warm atmosphereLow power consumption and high practicalityMade of high quality material， so it is enough durable for long time usingThe laser can be seem as far as the eye can seePower saving， compact and reliableSimply press the button to activate the laser pointer pen and release it to deactivateLightweight and handy design， it is very convenient to put in bags or pocketsIt’s more convenience that use laser point to the target instead of handsPoint at any desired targets on projection screens， video monitors， and presentation graphics                                                            Specifications            Output Power    5mW    <br>Wavelength    405nm    <br>Light Color    Purple    <br>Switch Type    Click    <br>Switch Location    Middle    <br>Power Supply    2*AAA Battery (not included)    <br>Color    Red    <br>Weight    0.99 oz / 28 g    <br>Dimensions    6.30 x 0.51" / 16 x 1.3 cm (L x Dia)    <br>                                                            Package Includes            1 x Laser Pointer Pen<br>