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New laser box Blue 7W+ NUBM0E 2x batteries 18650 Litokalla + BMS 5A Driver 5A Security key Key on/off Temperature protection 60C KSD Charging with Adapter 8.4V

These work stably. You just need to use two drivers to power every two rows of 10 laser diodes. I use the same converter with 18pcs 18650 batteries 600W Aluminum Plate DC-DC Boost Converter Adjustable 10A Step Up Constant Current Power Supply Module Led Driver https://a.aliexpress.com/_mLgIFM2

This is after I glued the aluminum heatsink and raised the fan voltage to 18V. There is a marked improvement in the rapidity of the temperature drop

At this rate the temperature drops. It drops by 1 degree in about a minute. It's slow, but I don't mind at the moment. I went from 30C to 70C in about 5 minutes of continuous work. I also put this aluminum radiator and it has an even better result

Yes, I am familiar with the principle of operation of finned radiators with active cooling. I'll use it with this one for now. When I put the new array I will see how it is. As a last resort I will put one with active cooling. In my case it will be very easy. I just have to unscrew 2 screws...

Yes, I am careful. I never shine in glare without glasses. I made a few more changes to my box. I put a fan behind the big radiator blowing directly into it. My goal is not to cool the heatsink, but to cool it down faster by turning off the laser. With this fan, the air in the box will...

Yes, I understand that I can put the lens at a further distance. Yours are much thicker than mine from the pictures I see. Well, I'll experiment with time. I'm putting it close because after I slide the new array in, I'm going to close that big gap with a big piece of plywood that I'm going...

Yes yes. If I shine in bright objects, I wear glasses. And what about this lens of mine? Because it's not biconvex, but it works. Also, is it possible for the reflection of the rays that are reflected back to damage the array. Because if the lens is close like mine, the reflection is...

Let me add something I noticed. I think the beam divergence could be improved. The front diode I had with broken pins, I had removed the lens with a utility knife. Then when I put it on I put a very thin layer of glue that didn't lift the lens up. The beam was very good and tight until now I...

Yes, it's a little heavier, but it's not much of a problem. Even with the current arrangement, the weight is balanced, because in the rear part these 18 batteries weigh. The rear used to feel a lot heavier than the front. It's ok now. Now I have to wait for the new array to arrive and...

I made the changes on the laser. I installed the large aluminum heatsink and added a temperature sensor to see the temperature of the heatsink. Massiva is gripped very strongly and densely. There is nowhere more dense. There is a video of one minute of operation, and before that I had turned...

Here is the building.

I'm not arguing with anyone. I added a little clarification to your comment. I'll write it again, there are no people there and never have been. This is a building where electricity is distributed. No windows or anything. I'm well aware of what's dangerous and what's not. In fact, you are...

Where did you see a building? This is an electrical substation, and there are no people there. FYI, I don't even wear glasses. I shine at home without problems without glasses. The light doesn't bother me. You are exaggerating a bit and fearmongering as if it were a nuclear weapon.

Yes, I understand that it is best with active cooling. In my case, it will not be used for a long time. I will try these days how it will be with this big aluminum radiator. If it works fine with the current array, I'll mount the new one on it when it arrives. If not I will buy this one from...

Yes, I've watched it. That's 95W. I guess NUBM35 at 4A will reach the same power. I don't know if it's a problem that my aluminum radiator has small gaps in the casting.

Anyone have an opinion on this NUBM31T array?

6 diodes at 3.7A are about 35W power. It shines quite brightly. If the driver was the problem all 14 diodes would die. Today I even ran a 7A current for about 5 seconds and it couldn't kill the diodes. It just happened by mistake. They are currently working without problems again at 3.7A...

Yes yes. I will do everything as you say. First I will test it with the dc unit with a very nice magnification to know that everything works as it should. I will then connect it to the 600W driver.

I got a reply from the seller. He offered to pay just $10 for shipping and send me a new array for free. I feel uncomfortable on my end and sent him $50. However, this current one works though with 6 diodes and I will use it. I expect it to be with me in 3 weeks, when I will make some...