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Okay, if I use two 18650 battery's how much ohms of Resistance do I need?

Hello everybody, I have a nugm02 diode, and I want to make a circuit for it, but I don't really know how. if I use a 9v battery (or power supply), and I want to put 4,86v at 2A into the laser what kind of resistor do I need? Because I am very confused... Thanks for helping😁

hello everyone, some of your ideas did not work. and i haven't tried the other ones because it is just a handheld laser with a nugm02. any other ideas?

it worked before....

hello everyone, two of my lasers don't work for the same unknown reason, its something with the batterys but i do not know what, because both the battery's make contact to eachother, to the spring for + and to the switch for -. they are fully charged and the host fully works as well because...

the package did not arrive so a new one has been send...

Hello everyone, I ordered some parts from DTR a month ago, and normally it would take 10-15 days to get to my house in the Netherlands. But it's a month later now and it still hasn't even been to a USPS facility, so does anyone know if this is only a problem that I have, or does somebody have...

Wow this is a good argument that I can really use thank you!

Hello everyone, I have laser goggles from survival lasers, I know how to use lasers and how to be safe while using them I always put on my glasses when I use lasers above 5 mW because I do not want I damage and I am very responsible with them. I don't shine my lasers at vehicles and people and...

Im from the Netherlands and no I have not reached it

I don't live in the US

hello everyone on the forum, i just bought all the parts to make a NUBM44-v2 (with the money that i earned myself) which is obviously very expansive, when i told my parents they got mad at me because its so expensive, so does anyone have good arguments which i can tell my parents in order to...

what is "the sponsor"?

the brightest diode right now is the NDG 7475, it has a wavelength of 520 nm. green is the brightest color, but i can see that you are new here so if i were you, i personally would start of with a not so strong laser for your new build, i am pretty new as well but i first did a lot of research...

thats actully a good idea, thanks!!!

okay, so i broke my driver from survival lasers and i wanted to make a blank circuit board so that i can hook it up to another driver that feeds my laser diode but i didn't know if i did it right like this. so can anyone tell me if i did, because i dont want another broken laser diode... Okay...

Wow, thank you very much

Hello everyone, does anyone know a site where i can find a lot of Data sheets. I don't know if such a site exists but if it does it is far easier to have all the datasheets at ones in stead of finding them one by one. If you are wondering why i am asking this it is because i want to fill a map...

Thanks for your messages everyone :) you helped me a lot!

i just used the regular driver that you got with the No Diode Host Bundle set at 1.5 A sorry i cant post links yet