How do I get the grid display to be the single beam of light? When I take the end off entirely the beam is not focused. It projects a softball sized ball of light on to objects instead of a fine point.

Unfortunately you can not get it to a single beam with out taking the light refracting lens off. Its a rather strong laser pointer so it won't be that small of a beam.

Do i need eye protection to toy around with this?

No. As long as a laser is 5mw or below you do not. But never point it into someone's eyes.

QAR148^.26

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Main image of LED 303 Laser Pointers Green Beam Laser Pointer Star Pattern Filter pen Adjustable Focal Length Safe Key Laser+4200mah 18650 Battery+Charger

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LED 303 Laser Pointers Green Beam Laser Pointer Star Pattern Filter pen Adjustable Focal Length Safe Key Laser+4200mah 18650 Battery+Charger

(4) Write a Review

Color:Green
This laser pointer can be used for presentation, teaching indicator, children amusement and more.
Power supply: 1 x 18650 Battery
Focus mode: adjustable
Body material: aerometal.

Overview

Specs

Reviews (4)

Specifications:
1.
Wavelength: 532nm.
2. High Power Military Grade
3.
Beam style: continuous line.
4.
Preheat time: < 3seconds.
5.
Operating Voltage: DC 3.7V with a key to protect
6.
Dimensions:? 25mmX155mm
7.
Battery: 18650 can rechargeable batteries (Not included)
Package include: 1 X 303 Green Laser pointer pen with 5 star Capter 2 x Safety Keys 1 x 18650 battery 1 x charger
Cautions: Avoid direct eye exposure to laser beam NOTE!!! Never point it to eyes!!! Always Keep it away from children!!!

Specification
Type	Project & Display Boards

Details
Color	Black

Additional Information
First Listed on Newegg	February 11, 2019

Warranty & Returns

Warranty, Returns, And Additional Information

Return Policies*

Return for refund within: 30 days
This item is covered by Corn Electronics Return Policy
*Subject to applicable law
Warranty Notice:
This product does not include manufacturer warranty when purchased or used outside of its designated sales region. By purchasing internationally, you acknowledge that warranty support from the manufacturer will not be available.

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Item#: 9SIA4RE4TF1222