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Author Topic: Is a Tri-Cree (XP-E2) GGW really brighter than a Single Cree (XP-E2) Green?  (Read 2774 times)

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Offline Michael Darkstar

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Anyone who actually measures the Lumen?

So this is about running two of the same colors at the same time together, in this case Green and the White is just for FoC or would this be no significal benefit in brightness over running a single Green?

And my apologies if this wasn't clear in the subject description.
« Last Edit: January 22, 2018, 12:05:13 PM by Michael Darkstar »

Offline jbkuma

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The G series LEDs only come in white or royal blue, as Yoda mentioned in your other thread. If you want one of those colors it is possibly somewhat brighter.

Offline Michael Darkstar

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The G series LEDs only come in white or royal blue, as Yoda mentioned in your other thread. If you want one of those colors it is possibly somewhat brighter.

What? No, in this case the ''G'' stands for Green and what you are talking about has it's own thread.

Offline K-2SO

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Yes two are “brighter”, though not necearrily twice as bright.



I find your arguments vague and unconvincing.

Quiet! *Slap* And there’s a fresh one if you mouth off again.

Offline Michael Darkstar

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Yes two are “brighter”, though not necearrily twice as bright.

At least it's twice the power consumption.  :cheesy:

Offline K-2SO

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Not necessarily.



I find your arguments vague and unconvincing.

Quiet! *Slap* And there’s a fresh one if you mouth off again.

Offline Michael Darkstar

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Not necessarily.

No? Would you care to elaborate?

Offline K-2SO

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It all depends on how you wire and power them. If I run them in series, I only need about 1.2A or so to run them both. If I wire them in parallel, then I would need about 2.4A or so. So like I said, your statement is not necessarily true.



I find your arguments vague and unconvincing.

Quiet! *Slap* And there’s a fresh one if you mouth off again.

Offline Greywolf

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It all depends on how you wire and power them. If I run them in series, I only need about 1.2A or so to run them both. If I wire them in parallel, then I would need about 2.4A or so. So like I said, your statement is not necessarily true.
Consider me as 'I didn't get your meaning':
Yes, in series you'll only need half of the amperage of parallel but on the other hand you'll need twice the voltage, so (in theory) 'overall power consumption' is the same.
Or is there a (small) difference in 'real' usage?
Life is but a series of missed opportunities.

Offline K-2SO

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The OP didn’t specify his power solution.. so if you were using a 7.4V source (in both cases), what he said wouldn’t necessarily be true from th Amperage required perspective. In that case, you would use 7.4V either way, it’s just that you would waste half of it by needing a huge resistor to prevent blowing a single LED.



I find your arguments vague and unconvincing.

Quiet! *Slap* And there’s a fresh one if you mouth off again.

Offline Michael Darkstar

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The OP didn’t specify his power solution.. so if you were using a 7.4V source (in both cases), what he said wouldn’t necessarily be true from th Amperage required perspective. In that case, you would use 7.4V either way, it’s just that you would waste half of it by needing a huge resistor to prevent blowing a single LED.

No but I did say that two Green LEDs should be on at the same time.

Offline K-2SO

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The OP didn’t specify his power solution.. so if you were using a 7.4V source (in both cases), what he said wouldn’t necessarily be true from th Amperage required perspective. In that case, you would use 7.4V either way, it’s just that you would waste half of it by needing a huge resistor to prevent blowing a single LED.

No but I did say that two Green LEDs should be on at the same time.

And in one of my scenarios, they would, just not necessarily with twice the power consumption.  :grin:



I find your arguments vague and unconvincing.

Quiet! *Slap* And there’s a fresh one if you mouth off again.

Offline Michael Darkstar

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The OP didn’t specify his power solution.. so if you were using a 7.4V source (in both cases), what he said wouldn’t necessarily be true from th Amperage required perspective. In that case, you would use 7.4V either way, it’s just that you would waste half of it by needing a huge resistor to prevent blowing a single LED.

No but I did say that two Green LEDs should be on at the same time.

And in one of my scenarios, they would, just not necessarily with twice the power consumption.  :grin:

So you need a 7.4V Lithium battery of a type that is not easily removable... well, that's your prerogative.

Offline K-2SO

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What I decide to use is irrelevant. You asked a question, had it answered, you made a statement, I replied, and backed it up. So, I think we’re done here.



I find your arguments vague and unconvincing.

Quiet! *Slap* And there’s a fresh one if you mouth off again.

Offline IneptAphid

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So..what was the answer? Is it brighter? I couldnt tell from those replies :D

 

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