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Old 08-21-2012, 09:47 PM #1
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Default Will I notice a big different between M140(5.5mm) and Nichia(9mm) in burn and bright

Hello

Because of limited number of letters in the title I had to use a shitty grammar

Will I notice a big different between the M140(5.5mm) and the Nichia NDB7875(9mm) in burning and brightness ?

The thing is that I almost got everything settled up for the M140 build
And changing to 9mm will cost me shipping back cost, more money for batteries, extension for the host (+$20) or probably returning it and buying another one and buying for shipping+extra bucks for more expensive parts (around $35)
Maybe all this will cost me a 50-80 dollars more+waiting+searching for host, searching for a beautiful host is goddamn hard.

I wasn't really planning to change it because I thought that I would reach the 2.6w %100 with the G-2 and around 1.7A of current (boost), but I saw some thread where they didn't even hit the 1.5w (without the G-2)


Your opinion ?


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Old 08-21-2012, 10:14 PM #2
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Default Re: Will I notice a big different between M140(5.5mm) and Nichia(9mm) in burn and bri

The 9mm diodes are capable of producing more light than the M140, so yes.

It's not a huge difference though, and whether or not it's worth the extra cost is up to you.
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Old 08-21-2012, 10:56 PM #3
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Default Re: Will I notice a big different between M140(5.5mm) and Nichia(9mm) in burn and bri

Yep it will not be a huge difference as 445 takes four times the output to be twice as visually bright.
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Old 08-21-2012, 11:02 PM #4
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Default Re: Will I notice a big different between M140(5.5mm) and Nichia(9mm) in burn and bri

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Originally Posted by DTR View Post
Yep it will not be a huge difference as 445 takes four times the output to be twice as visually bright.
What about burning effect ?
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Old 08-22-2012, 12:07 AM #5
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Default Re: Will I notice a big different between M140(5.5mm) and Nichia(9mm) in burn and bri

Not sure anyone can give you the specific answer you are looking for but either is a lot of power and will burn like crazy so I am not sure you will be able to perceive the difference.
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Old 08-22-2012, 12:16 AM #6
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Default Re: Will I notice a big different between M140(5.5mm) and Nichia(9mm) in burn and bri

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Originally Posted by DTR View Post
Not sure anyone can give you the specific answer you are looking for but either is a lot of power and will burn like crazy so I am not sure you will be able to perceive the difference.
I hope that the right person come and give us the final answer

I am between being with a higher noticeable burning effect, and a higher benchmark for benchmarks whores.

Will I actually going to hit the 2.5w with the gear I bought ?


Edit:Actually I read your replay twice as I know that you have many valuable information in your post DTR, so I figured this out

You don't really need to read all this, what you need is this the last 5 sentences

If the the burning effect and the frequency has this relationship "frequency/burning=x" , x=?
And because of this relationship "burning * wavelength=c" and c is the light speed in vacuum
Then the burning effect and the wavelength have this relationship "burning * wavelength=y" , y=?
That mean that once we have a lower wavelength, we get a higher burning effect.
And also we know that once the wavelength is higher the brightness is higher, so "brightness * burning=z", z=?
Assuming that the information you gave in your post is %100 true, then we have this relationship between wattage increase and brightness increase "brightness=wattage increase/2"
That will lead to this burning=wattage increase * 2
That mean if I increased a 2.0w with 500mw, I will get %50 better burning
You don't really need to read all this, what you need is this the last 5 sentences

Last edited by hoo7h; 08-22-2012 at 04:18 AM.
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Old 08-23-2012, 04:50 PM #7
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Default Re: Will I notice a big different between M140(5.5mm) and Nichia(9mm) in burn and bri

Quote:
Originally Posted by DTR View Post
Yep it will not be a huge difference as 445 takes four times the output to be twice as visually bright.
Wait this is something specific for 445 nm ?
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Old 01-15-2013, 06:04 PM #8
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Default Re: Will I notice a big different between M140(5.5mm) and Nichia(9mm) in burn and bri

Quote:
Originally Posted by hoo7h View Post
increase "brightness=wattage increase/2"
That will lead to this burning=wattage increase * 2
That mean if I increased a 2.0w with 500mw, I will get %50 better burning
[/B]
I know this is old, but lol@your math... What is 50% of 2000mw? (not 500mw)
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