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Old 02-20-2008, 04:07 AM #1
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Default DX 70mW Red lab Run time

just a quick question

I should be getting my Dx 70mW Red lab laser here soon and want to know how long i can let it run. with the heat sink on the diode can i let it run all day or is there some kind of duty cycle like in green lasers i should be following.

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Old 02-20-2008, 04:12 AM #2
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Default Re: DX 70mW Red lab Run time

I hooked one up to a 5 volt adapter and left it running for 3 hours with no problems. For extra thermal protection you can even mount it to a solid block of metal and leave it running until the diode burns out in 5000+ hours.
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Old 02-20-2008, 11:12 PM #3
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Default Re: DX 70mW Red lab Run time

so basically as long as it stays cool it ok to just let it run. Thanks for your help
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Old 02-20-2008, 11:24 PM #4
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Default Re: DX 70mW Red lab Run time

With that heatsink it'll run forever really, at least i haven't noticed any warming even with the 100 mW version. The transistors on the driver get warm but that's no problem.
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Old 02-20-2008, 11:33 PM #5
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Default Re: DX 70mW Red lab Run time

ya i was thinking if there was room, drilling some holes in the heat sink for water cooling just to be on the safe side. i still dont know if im going to be doing what i had planed on so i might not even have it running for long periods of time i just wanted to know if it was a good idea to just let it run.
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Old 02-21-2008, 02:39 AM #6
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Default Re: DX 70mW Red lab Run time

Water cooling is more than a bit excessive. Just mount it to a solid metal block and you should be able to leave it running for years. Red lasers are a lot more efficient than greens so they don't need much cooling.
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Old 02-21-2008, 07:01 PM #7
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Default Re: DX 70mW Red lab Run time

i left my 70 mw running for 2 hors with a rediculously loose heatsink ( the module easily falls out) then i felt the heat sink which was still room temp then i removed the module and it was only as warm as if i had held it for a min or two. this was a 70mw potted to the max
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Old 02-22-2008, 09:57 PM #8
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Default Re: DX 70mW Red lab Run time

i saw one guy that had a heat sink for his portable green laser, it was pretty cool
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