20W Laser Pen Stainless Pointer
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Even at power levels considered relatively safe, you should not deliberately stare into a laser beam for any reason. For these relatively laser, permanent eye damage is not that likely but why take chance? For these lasers, viewing the spot projected on a white surface is perfectly safe. Even though light bulbs are measured in Watts, they are unlikely to cause permanent damage to your eyes. This is because the light from the bulb is not focused and collimated.
