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Old 03-21-2008, 11:07 AM #1
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Default Question about power supply

hey, im gonna build a diy laser and i wasnt sure wether to use batteries or a mains adapter that changes the power to 3v DC ?

thanks


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405nm | Banggood LT-850 | "5mW" | Review Unit | Review WIP
445nm | Sanwu Laser Pocket Series | 400mW Metered
445nm | NDB7242E Pen Build | 60mW Metered | >>Build Thread<<
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Old 03-21-2008, 07:22 PM #2
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Default Re: Question about power supply

That has to be your choice, which ever way you go you will need to build a drive circuit ( 3vDC supplys are not constant current). You may just get away with a limiting resistor but I would not advise it.....

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Old 03-21-2008, 07:49 PM #3
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Join Date: Feb 2008
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Default Re: Question about power supply

ill use batteries and a 10ohm resistor in that case, to save all the hastle lol
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405nm | Banggood LT-850 | "5mW" | Review Unit | Review WIP
445nm | Sanwu Laser Pocket Series | 400mW Metered
445nm | NDB7242E Pen Build | 60mW Metered | >>Build Thread<<
450nm | LaserPointerStore - Thor H2 | 1W(?) | Review Unit | >>Review<<
488nm | Spectra Physics 163 Argon | ~30mW Metered
515nm | PL515 Pen Build | 50mW Metered | >>Build Thread<<
520nm | Laserlands 520 | 5mW | Review Unit | 3mW metered | >>Review<<
532nm | Gearbest 303 Pointer | 50mW Metered
532nm | Gearbest JD-850 Pointer | 30mW Metered (I think, need to re-test).
633nm | HeNe | 6mW
633nm | Spectra Physics 155 HeNe | <1mW >>Thread<<
650nm | Sanwu Laser Pocket Series | 200mW Metered
808nm | Melles Griot 532nm Lab Unit | No Crystals >10W | X2



Check out my Reddit Subreddit! >>/r/laserpointers<<

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