Beginner's Guide to explain simple LED flashlight.

vqF2i6rNci

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Sep 11, 2015
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I agree, thank you for the easy explanation of directional clicking on the tailcap. I was quite confused even after reading and trying several lights, as some nuance is different. This explained it perfectly!:thumbsup:

O
 
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Nov 1, 2015
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Posting here as a brand new member, glad to have found this forum!

Great as this thread is, it's kind of overwhelming since it's 3 pages long. I found myself thinking I had to read all 3 pages to benefit from this FAQ type of thread. Sure would be nice if it was just one post that was updated, kind of like a wiki. Believe me, I'm not overlooking the irony of my posting here and saying what I said. :)

Or maybe there is such a page/wiki here that I haven't found yet (if someone could point me there?).

Just a thought. Thanks!
 

Mill321

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Nov 4, 2015
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Terrific explanation. I have come across a few other explanations that have gone over my head, but I think this struck the perfect balance of keeping it informative, but simple enough for newbies such as myself to understand. Thanks!
 

1tac

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Dec 24, 2015
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Re: Beginner's Guide to explain simple LED flashlight

What is the best way to tell what the quality is when it comes to the Lumins/ lens and inside components?
 

download

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Good questions, 1tac

The best way maybe test it by your hand, like
1. run it at open field at night, you would see the actual output beam pattern,
2. check the tail cap current of battery, you will know how much it draw from battery
3. check the led current, to know exactly led current, so you can calculate the efficiency of the circuit.
4. check the temperature around led and the flashlight body, is it good for heat management.

Or read other member posts about the reviews.

:santa:
 

cjs072

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Dec 28, 2015
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which type of material should be use in heat sink ?
you have mention the material but not mention the grade of the material . like aluminium , extruded or die casting , material composition , some material has high heat tolerance power , some has less , so which grade would be better ?

please suggest .
 

download

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cjs072, We will love to see if you could share you expertise here. After all this post is for general concept only.
If you search inside cpf, you would find a lot of good post talking about it. :)

:welcome:
 
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GusManB

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Jan 24, 2016
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Hi I am New and Have a Question about LEDs.
I am sorry if this may have been answered before.

I see a number of lights on the Market that are Tri LED or more. I know that in some applications such as needing Color Mixing this is a cool idea, much like The LEDS used in Custom Star Wars Sabers. How is it applied here and is it just preference?
 

download

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I guess we just want to push it to the limit, try to make it as bright as possible in hand. :laughing:
Before, high power/low voltage small die led is not available yet, put a few more together is a alternative solution.
:)
 

nicky_is12

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Mar 5, 2016
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Thanks OP. This thread has helped me understand the basics. I thought I had a general idea prior to reading this, and boy was I wrong.
 
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