Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

Buy Site Supporter Role (remove some ads) | LPF Donations

Links below open in new window

ArcticMyst Security by Avery | Browser Hide by Avery

My Furst Custom laser 7W+ NUBM0E

Blue 7W+ 460nm+ VS Green 2W 525nm
NUBM0E Blue 5.2A
NUGM04T Green 2.7A
 

Attachments

  • Screenshot_20221118_233339_com.android.gallery3d_edit_210833356230326.jpg
    Screenshot_20221118_233339_com.android.gallery3d_edit_210833356230326.jpg
    295.4 KB · Views: 9
  • Screenshot_20221118_233333_com.android.gallery3d_edit_210842988273033.jpg
    Screenshot_20221118_233333_com.android.gallery3d_edit_210842988273033.jpg
    327.9 KB · Views: 10
  • Screenshot_20221118_233331_com.android.gallery3d_edit_210856546327719.jpg
    Screenshot_20221118_233331_com.android.gallery3d_edit_210856546327719.jpg
    384.2 KB · Views: 9





7W+ vs Green 2W
 

Attachments

  • Screenshot_20221119_180504_com.android.gallery3d_edit_261400057897610.jpg
    Screenshot_20221119_180504_com.android.gallery3d_edit_261400057897610.jpg
    329.7 KB · Views: 13
  • Screenshot_20221119_180502_com.android.gallery3d_edit_261393938042403.jpg
    Screenshot_20221119_180502_com.android.gallery3d_edit_261393938042403.jpg
    716.1 KB · Views: 13
  • Screenshot_20221119_180457_com.android.gallery3d_edit_261387999803341.jpg
    Screenshot_20221119_180457_com.android.gallery3d_edit_261387999803341.jpg
    311.2 KB · Views: 11
  • Screenshot_20221119_180455_com.android.gallery3d_edit_261382012135634.jpg
    Screenshot_20221119_180455_com.android.gallery3d_edit_261382012135634.jpg
    449.6 KB · Views: 11
  • Screenshot_20221119_180451_com.android.gallery3d_edit_261375804233031.jpg
    Screenshot_20221119_180451_com.android.gallery3d_edit_261375804233031.jpg
    502.7 KB · Views: 11
Power test NUGM04T 2.7A with lens 3 element.
Hello. This is what my LPM meter shows. I think it's fairly accurate. NUGM04T at 2.7A delivers power over 2W. This is a test with a 3 Element lens. The force must be just as much with her
@RedCowboy
 

Attachments

  • Screenshot_20221120_164533.jpg
    Screenshot_20221120_164533.jpg
    1,022.2 KB · Views: 8
Last edited:
I’m a little obsessive with safety I guess. I put on my OD 6 goggles even when changing batteries on my lasers.
I have glasses but I never wear them. I'm just very careful. Reflected light only blinds, nothing more

4pcs Blue 7W+ 460nm+ 1pc Green 2W 525nm
 

Attachments

  • Screenshot_20221122_082300_com.android.gallery3d_edit_51481381361935.jpg
    Screenshot_20221122_082300_com.android.gallery3d_edit_51481381361935.jpg
    703.3 KB · Views: 6
Last edited:
I recorded a video to show the benefit of large copper heatsinks at power above 7W at room temperature. See how many degrees rise in 90 seconds of operation at max power
NUBM0E
5.2A
 
@RedCowboy

Hello. I want to make a NUBM0E laser diode to glow for a long time with this heatsink and fan. I want to use the same driver as in my lasers. My question is what 12V adapter should I buy to connect it to the driver. The driver will be set to 3.5/4А, because the goal is to light up for a long time.



AC 110-240V DC 5V 6V 8V 9V 10V 12V 15V 0.5A 1A 2A 3A Universal Power Adapter Supply Charger adaptor Eu Us for LED light strips

Driver specification
Laser Diode LD Driver Board PCB 4.5A for 3.5W NDB7A75 3 Modes High Low Strobe
Specification:

Input Voltage: 5.8-12V
Circuit control: 5V circuit, constant current output
Dimensions: 12 * 22mm (W * L)
Reverse polarity protection: a unique reverse polarity protection design, no need to worry about the battery discharge burning plate
Pin definition: 445nm driver board designed specifically for the pad. You only need to weld it according to the foot a triangular arrangement
Polarity definition: module housing is positive,trailing bonding pad is negative

Detail:
This Laser Diode Driver PCB 4.5A Constant Current can be used to drive 3.5W NDB7A75
This is a 4.5 Amp laser diode driver with 3 modes, high, low, and strobe. It has an input voltage of about 8 to 12 volts. Most people will use 2 Lithium ion IMR or INR batteries at 8.4 volts. It is a buck driver with reverse polarity protection. It does not require a heat sink.

Package:
1 x Laser Diode LD Driver Board PCB 4.5A for 3.5W NDB7A75 3 Modes High Low Strobes
 

Attachments

  • Screenshot_20221206_155445_com.ebay.mobile.jpg
    Screenshot_20221206_155445_com.ebay.mobile.jpg
    726.2 KB · Views: 5
  • Screenshot_20221206_155821_com.rezonmedia.com.bazarbg.jpg
    Screenshot_20221206_155821_com.rezonmedia.com.bazarbg.jpg
    694.7 KB · Views: 3
  • Screenshot_20221206_160251_com.alibaba.aliexpresshd.jpg
    Screenshot_20221206_160251_com.alibaba.aliexpresshd.jpg
    658.9 KB · Views: 3
Last edited:
I haven't used this one yet but expect it should work well enough and you can modulate it later if you choose to do so.


 
@RedCowboy
So choose the 12V 3A option, right? I plan to connect the fan that works with 12V to it. I guess it won't be a problem. The goal is to light for a long time at 3.5-4A.
 

Attachments

  • -770236581-537468785.jpg
    -770236581-537468785.jpg
    199.5 KB · Views: 1
  • 1598226346-743866907.jpg
    1598226346-743866907.jpg
    80.1 KB · Views: 1
Yes input of 12V @ 3A will step down to 4.6V @ 5A just fine, 36W input for only 23W out is no problem, the driver would only use about 2A worth of the available 3, that said a 12V 1.5A wall-wart wouldn't be enough.

That small fan shouldn't be a problem.

That housing in your image may or may not move heat very well, I've had some that aren't worth a dam.
 
Thanks. I ordered the 12/3A variant. Regarding the cooling, I will judge when I put everything together. If necessary, I will mount the body on another aluminum radiator with thermal paste between them. Or else I will install an additional copper radiator. I have ideas, but I'll judge that on the spot by turning it on and seeing what temperature it gets
 
Last edited:





Back
Top