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<blockquote data-quote="WayneF" data-source="post: 384940" data-attributes="member: 12496">I don't know, but I suspect there is no actual issue.&nbsp; The laser security beams we see in the action movies are on continuously, at least overnight.&nbsp; <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile&nbsp; &nbsp; :)" loading="lazy" data-shortname=":)" />Such gear, including incandescent and flash, have a rated heat factor.&nbsp; They can be operated at high level and may overheat and fail if not cooled soon. A laser beam fired at the moon is surly in that class.&nbsp;&nbsp; And there are High Power pointers, which if they do say 30 seconds, better honor it.&nbsp;Or they can be operated at low level, and last nearly forever.&nbsp; The design of a laser pointer that will fail at 30 seconds would be extremely poor performance.Buy a couple of cheap ones ($6) and have at it.&nbsp; Expendable.&nbsp;&nbsp; <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile&nbsp; &nbsp; :)" loading="lazy" data-shortname=":)" /></blockquote>

[QUOTE="WayneF, post: 384940, member: 12496"] I don't know, but I suspect there is no actual issue. The laser security beams we see in the action movies are on continuously, at least overnight. :) Such gear, including incandescent and flash, have a rated heat factor. They can be operated at high level and may overheat and fail if not cooled soon. A laser beam fired at the moon is surly in that class. And there are High Power pointers, which if they do say 30 seconds, better honor it. Or they can be operated at low level, and last nearly forever. The design of a laser pointer that will fail at 30 seconds would be extremely poor performance. Buy a couple of cheap ones ($6) and have at it. Expendable. :) [/QUOTE]

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