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Cheapest blue laser 3 or more?

reteweee

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ATM I can get 3W for 79$. Any cheaper blue laser 100% real?
 
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reteweee

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Hey, welcome to the forum, I don't remember anyone ever joining from the country your IP is coming from before. I don't know if you can, that is cheap, cheap...
Sir, I'm from spain. There isn't any 445nm 3w or more cheaper than 79$?

Thanks
 

reteweee

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$59 dollars is very cheap, not sure what you can build for that yourself, certainly nothing that nice looking unless you can machine aluminum yourself. However, I've never seen the quality of that particular pointer myself, only photo's. Has anyone here had one of those?

But you said you wanted 3 watts, I don't think you will find a 3 watt laser for $59.00 completed.
3 Wats 79$ sir, I edited. I saw some reviews, and all OK
 

brendon7358

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Why do you need a 3W laser? I think it's best to start with <200mW. Anything over 1W is extremely dangerous and can blind you quicker than you can blink. Its like getting your first gun and starting off with a double barreled sawn off shotgun.
 

reteweee

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Why do you need a 3W laser? I think it's best to start with <200mW. Anything over 1W is extremely dangerous and can blind you quicker than you can blink. Its like getting your first gun and starting off with a double barreled sawn off shotgun.
Serious 3W is that dangerous sir? I would only use outdoor.
 

brendon7358

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I recommend you get something less powerful to start with. A 3W laser is extremely dangerous. You can have a lot of fun with a 100mW 532nm or even a 200-300mW 650nm I promise. Also try not to be a smart ass, quickest way to get banned or ruin your reputation for a new member such as yourself. Also don't forget safety goggles. Regardless of the laser power.
 
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I think you can get 3w blue laser with 79usd
You can order:nubm05-40usd
A plashlight host z6 2x18650:10usd
A heatsink handmade:10 usd
Driver you can use LM338 set at 3A:2usd
Battery 2pcs:10usd
Total 72usd
Edit;sorry if you need 3w real complete,i think it is very difficult,just only you buy diode,host,driver and make them
I agree with Alaska ,it is dangerous
 
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reteweee

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brendon7358

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Holy shit. What distance and how that occured to you sir. Now are you good?

You didn't use safety glasses? With safety glasses are we 100% sure?
Read the thread, it was probably 5-10ft for less than a second he didn't have safety glasses on but that was "only" a 1W laser. Imagine what a 3W laser would have done.
 

reteweee

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Read the thread, it was probably 5-10ft for less than a second he didn't have safety glasses on but that was "only" a 1W laser. Imagine what a 3W laser would have done.
Ok you scared me alot, I'll think much more about buying a laser with that power. But with safety glasses I would be 100% secure?
 

brendon7358

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Ok you scared me alot, I'll think much more about buying a laser with that power. But with safety glasses I would be 100% secure?

You are but if you are going to have to wear safety glasses every time you use it, why not just get a lower powered laser?

I recommend this with the combo deal for all 3, it's only $40 and you get 3 lasers 405nm (Violet) 532nm (green) and 650nm (red) so you can experience different wavelengths.

The red one is powerful enough to burn stuff (Light matches, burn wood etc). And has a dot as bright as a 3W 445nm laser

The green one has a beam as bright as a 1W 445nm and a dot as bright as a 2W 445nm

And the violet one can make stuff glow in the dark and is a different color depending on the surface you point it on.

These 3 lasers will be much more exciting than 1 3W 445nm laser and although you still have to respect them, they will not blind you as easily as a 1W+ laser would. But ALWAYS treat lasers with respect.

Don't forget safety goggles. Its best to get a really good pair such as an eagle pair from survival laser. But if those are out of your budget right now, I sell budget laser safety goggles that I tested. Remember you will need 2 different pairs, one to cover the 405nm and 532nm and one to cover 650nm. No goggles can do all three otherwise you wouldn't be able to see through them because they would have to block all visible light.
 
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