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How well will a 500mW 405nm burn compared to a 1W 445nm?

brendon7358

brendon7358

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Hey I recently got a "5"mW 405nm (I estimate 50-75mw but I could be wrong) and I really like how it makes stuff glow. When I can see the beam (in fishtank or at nightime) it looks to me a like a 473nm beam which is quite beautiful. My 1W 445nm broke a month or so ago so I am looking for another high power laser. SO how will a 500mW 405nm burn compared to a 1W 445nm? Cause I think the lower the wavelength the better it burns? or the color of what your burning affects it less :thinking:? Also I would rather not get it from china and I do not really see any 405nm in BST so where can I find a good quality high mW one for about $120>? Preferably one that uses 16340 batteries. :thanks:
 





Your best bet is to make one, someone is selling a 1W 445 in the BST section right now, except it's 135$ but it includes everything :beer:
 
I know there is no spoon feeding but I have never built a laser however I know the basics of how it is put together. What would I need? And I do not have a soldering iron but I might be able to borrow one.
 
brendon7358 said:
I know there is no spoon feeding but I have never built a laser however I know the basics of how it is put together. What would I need? And I do not have a soldering iron but I might be able to borrow one.
Click to expand...

Well you NEED a soldering iron.

Grab a host from cajun lasers that holds more than 1 cell.
Get an S06J diode from DTR
Grab a 500mA Jib Drive from Cajun Lasers

Also From cajun, pick up a pack of those small heatsinks for the driver, some wire, and some heatshrink. Pick up that soldering iron, and get to work.
 
I would go with a boost drive of either a benboost or a micro boost. I just built a bluray with an S0j6 diode from DTR and a 500 mAh JIB drive. Nothing wrong with the JIB but these SOJ6 diodes seem to really like their volts. I switched to a micro boost at 515maAh and their was a big difference in burning power.
 
The BenBoost is a bad idea for these 12X's. They have quite the voltage spike along with them. Read the first post, and then the last page of this thread for some more info.

Also, drivers produce mA (milliamp), batteries are measured in mAH (milliamp hours).
 
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Hey sorry I disapeared lol. I plan on doing this project this summer when I have money. How many mW does that diode offer? is there a graph?
 
brendon7358 said:
SO how will a 500mW 405nm burn compared to a 1W 445nm? Cause I think the lower the wavelength the better it burns? or the color of what your burning affects it less :thinking:?
Click to expand...

I'm hoping this question gets answered. I have two 445 1W and have been eye'ing up a 405 500mW. Also curious about beam visibility of the 405's.
 
TheDukeAnumber1 said:
I'm hoping this question gets answered. I have two 445 1W and have been eye'ing up a 405 500mW. Also curious about beam visibility of the 405's.
Click to expand...

Most materials, to the violet wavelength, are "dark" or fluorescent. By dark, I mean they absorb the light well.
This helps if you want to burn things because most of the light is absorbed instead of reflected, which produces heat.

However, power is power. More light makes more heat. Since 405nm and 445nm are very close, the "shorter wavelength burns better" is negligible here.

I should add that when considering these two wavelengths as laser pointers, a 500mW 405nm may have a slight advantage over a 1W 445nm laser over distance because of its better beam properties.
Power density is important to consider.

405nm is not very visible. 500mW is enough to be used as a good star-pointer.
I think most people like 405 because of the awesome fluorescence effects and the unique color.
 
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