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Comparitively weak ... but only 'comparitively'.

Laser pointers are Class IIIa lasers. Their output power is limited to

5 milliwatts, with a beam power density that can't exceed 2.5 mW/cm2

without a "danger" warning label.

Pointers are powered by 'button' batteries that last a long time in laser-pointer

service. Still, they're capable of causing eye damage if shined directly into an

eye for more than a minute.

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