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Old 09-25-2016, 02:39 AM #1
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Default What power supply/setup do I need for this laser?

I bought a 5mw green line laser diode recently (https://www.amazon.com/farhop%C2%AE-...een+line+laser) and was wondering what I need to do to properly power this particular module.

Any help is appreciated, thank you!


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Old 09-25-2016, 02:48 AM #2
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Default Re: What power supply/setup do I need for this laser?

In the product information it states an input voltage of 5 volts.
It will work with voltages between 3v and 5 v.

I've used three x 1.5v AA batteries connected in series to power something similar.

Product Description

Specifications:
Wavelength: 532nm (Green)
Input Voltage: 5V (3 ~ 5v)
Power: Less than 5MW
Outer Diameter: 13mm
Length: 55mm
Pattern: Line, Continuous output
Working Temperature: -30 degrees to 30 degrees.
Storage Temperature: -30 degrees to 60 degrees.
Pattern dot size: 10 ~ 20mm from 10 meters distance
Life: more than 3000 hours.

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For God so loved the world that He gave His only begotten Son, that whoever believes in Him
should not perish but have everlasting life.
For God did not send His Son into the world to condemn the world,

but that the world through Him might be saved.
“He who believes in Him is not condemned;
but he who does not believe is condemned already, because he has not believed in the name of the only begotten Son of God.
And this is the condemnation, that the light has come into the world, and men loved darkness rather than light, because their deeds were evil.
For everyone practicing evil hates the light and does not come to the light, lest his deeds should be exposed.
But he who does the truth comes to the light, that his deeds may be clearly seen, that they have been done in God.”
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─────────────────────────────────☀
If you confess with your mouth, “Jesus is Lord,” and believe in your heart that God raised Him from
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Old 09-25-2016, 02:50 AM #3
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Default Re: What power supply/setup do I need for this laser?

Any Li-ion battery would work fine for this module. It really depends on the size of the host you are planning on using, which battery would work best. It has such a small output that almost any single Li-ion would work electrically. You need to give me more information to be able to assist you further.
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Old 09-25-2016, 03:47 AM #4
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Default Re: What power supply/setup do I need for this laser?

Quote:
Originally Posted by paul1598419 View Post
Any Li-ion battery would work fine for this module. It really depends on the size of the host you are planning on using, which battery would work best. It has such a small output that almost any single Li-ion would work electrically. You need to give me more information to be able to assist you further.
Exactly Paul !
A single Li-ion battery is enough and is rechargeable.

Here's my makeshift build using AA's which last surprisingly well.
I haven't bothered to build a better host using Li-ions since this does a great job for me.

So let us know what you want to use it for and we can help you further.

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─────────────────────────────────☀
For God so loved the world that He gave His only begotten Son, that whoever believes in Him
should not perish but have everlasting life.
For God did not send His Son into the world to condemn the world,

but that the world through Him might be saved.
“He who believes in Him is not condemned;
but he who does not believe is condemned already, because he has not believed in the name of the only begotten Son of God.
And this is the condemnation, that the light has come into the world, and men loved darkness rather than light, because their deeds were evil.
For everyone practicing evil hates the light and does not come to the light, lest his deeds should be exposed.
But he who does the truth comes to the light, that his deeds may be clearly seen, that they have been done in God.”
(John 3:16-21)
─────────────────────────────────☀
If you confess with your mouth, “Jesus is Lord,” and believe in your heart that God raised Him from
the dead, you will be saved.
For it is with your heart that you believe unto righteousness
and it is with your mouth that you confess
your faith and
are saved.
(Romans 10:9-10)
─────────────────────────────────☀

Last edited by RB astro; 09-25-2016 at 03:47 AM.
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Old 09-25-2016, 04:18 AM #5
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Default Re: What power supply/setup do I need for this laser?

I'm using the line laser for alignment uses at work. I'm an assembler and I want to use it to aid in making certain parts aligned and level.
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Old 09-25-2016, 04:56 AM #6
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Default Re: What power supply/setup do I need for this laser?

In that case you can use either a single Li-ion battery or a DC power supply that puts out 5 VDC. An 18650 battery would give you a long time between charges. It depends on how much you are willing to spend. I like the Panasonic batteries personally, but others are just as good. Here is a link for two Panasonic 3.4Ah batteries for $10.99 that are rechargeable, so you will need a charger for them also. www.ebay.com/itm/371690260837
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405nm Laser Pointer 45mW
405nm C11 700mW
405nm Laser Shack Pointer 80mW
445nm 1.75 watts SkyRay Gifted
445nm 3 watts MS-SSW-II
445nm 2.2 watts Nichia MS Envy

445nm 2 watt SMP Copper Host
488nm Uniphase #2201-20SLAT argon laser head and power supply >40mW
532nm 200mW thermostatically Fan Cooled (Besram) >230mW
532nm 189mW pocket lab laser
532nm lasers X6 100mW-200mW
532nm lasers X4 75mW- 140mW
632.8nm P210 New Laser Tube 0.57mW Melles Griot 05-LMP-827-037 PSU New
632.8nm Spectra- Physics He- Ne #102-2 4mW heads X2 and #236 power supply
632.8nm PMS He-Ne # 201P/ LPS-115 2mW
632.8nm Siemens HeNe LGK7630S 7.6mW
635nm 1 watt Cyprus II
635nm 1 watt SMP Copper host
635nm 5mW pointer
635nm 100mW pointer
650nm 65mW pointer
650nm 380mW 501B
808nm 1+W infrared laser
infrared video camera for collimating IR lasers
Ocean Optics USB2000 Spectrometer
Scientech Vector S310 with AC2500 10 Watt LPM
LaserBee II 3.2 Watt LPM
Radiant X4 3.7 Watt LPM
Eisco Scientific Spectroscope 400nm- 700nm

Last edited by paul1598419; 09-25-2016 at 04:59 AM.
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Old 09-25-2016, 06:07 AM #7
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Default Re: What power supply/setup do I need for this laser?

Awesome, thank you. And I assume if I were to use a dc supply, I'd want it to be in the same current range as a AA/18650?
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Old 09-25-2016, 06:17 AM #8
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Default Re: What power supply/setup do I need for this laser?

No, it doesn't need to supply nearly that much current. And besides, power supplies are not rated in Ah or mAh. They just have a maximum current level. In this case, A 500 mA 5 volt supply will be more than sufficient.
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405nm Laser Pointer 45mW
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405nm Laser Shack Pointer 80mW
445nm 1.75 watts SkyRay Gifted
445nm 3 watts MS-SSW-II
445nm 2.2 watts Nichia MS Envy

445nm 2 watt SMP Copper Host
488nm Uniphase #2201-20SLAT argon laser head and power supply >40mW
532nm 200mW thermostatically Fan Cooled (Besram) >230mW
532nm 189mW pocket lab laser
532nm lasers X6 100mW-200mW
532nm lasers X4 75mW- 140mW
632.8nm P210 New Laser Tube 0.57mW Melles Griot 05-LMP-827-037 PSU New
632.8nm Spectra- Physics He- Ne #102-2 4mW heads X2 and #236 power supply
632.8nm PMS He-Ne # 201P/ LPS-115 2mW
632.8nm Siemens HeNe LGK7630S 7.6mW
635nm 1 watt Cyprus II
635nm 1 watt SMP Copper host
635nm 5mW pointer
635nm 100mW pointer
650nm 65mW pointer
650nm 380mW 501B
808nm 1+W infrared laser
infrared video camera for collimating IR lasers
Ocean Optics USB2000 Spectrometer
Scientech Vector S310 with AC2500 10 Watt LPM
LaserBee II 3.2 Watt LPM
Radiant X4 3.7 Watt LPM
Eisco Scientific Spectroscope 400nm- 700nm
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Old 09-25-2016, 06:27 AM #9
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Default Re: What power supply/setup do I need for this laser?

I've run this type of module on 3.6v (3x 1.2v AA NiCD) or 3.7v Li-Ion (18650 and 16340/18350).

Also ran them on my bench psu.. at 3-4v averaged around 35-45mw and a slight increase of current around 8.4v but huge increase in heat and the death of one module in less than 1.5min.. problem with these is it seems no two are identical in output so really just follow specs from particular vendor and keep it on the lower end of input voltage to keep heat down and duty cycle up.
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