219b vs 219c

LogicalBeard

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Sep 18, 2016
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In a current regulated light, such as the Aeon Mk III S2, that has a 219c emitter, what would happen if I swapped it out for a 219b? Would it be dimmer but keep the same runtimes? How much dimmer? 20%? Would high mode (160 lumens) be the only mode affected? I realize the algorithmically way our eyes perceive light would make a 20% change in brightness moot. Thanks for anyone that takes the time to explain this to me.
 

trailhunter

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Jul 2, 2014
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219b are less efficient and run hotter at the cost of a more pleasant tint. I've replaced all my 219c lights with 219b

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trailhunter

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Jul 2, 2014
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Thanks. So same brightness but less runtimes?
Yeah, I cant give you numbers but it is performance impacting. Regarding runtime, sure you may see the effect on maybe a 14500 battery but larger batteries you probably won't even notice it.

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LogicalBeard

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Sep 18, 2016
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Hey, thanks again. I hear the word efficiency and I never knew what that really translated to. I thought less efficient usually meant a higher forward voltage and thus used more current but I wasn’t sure what that changed for runtimes or brightness. I appreciate you explaining that.
 

trailhunter

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Jul 2, 2014
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Hey, thanks again. I hear the word efficiency and I never knew what that really translated to. I thought less efficient usually meant a higher forward voltage and thus used more current but I wasn’t sure what that changed for runtimes or brightness. I appreciate you explaining that.
Np, imo its worth it.

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jrgold

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Dec 2, 2019
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I like them both, but 219b is my favorite. I have an rot66 that has some rosiness at lower levels and I don’t mind it at all. On higher levels it has a mix of clarity and warmth that I really like. My malkoff 219b’s are very neutral, almost snow white


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dotCPF

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The 219b is less efficient in both that it is lower output overall and it generates more heat.

219c is brighter but still generates a lot of heat.

I think the 219c gets a bit too much criticism and most of the 219cs I have are very neutral or only slightly green, which I prefer over super magenta tints like the 219b sw45k.

219bs are stellar, excellent for neutral and warmer k temps when you dont need crazy output. Otherwise the 219c is superior.
 
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