Kaidomain driver pack.

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Budgeteer
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Kaidomain driver pack.

I'm wondering if these drivers are any good:

http://www.kaidomain.com/ProductDetails.aspx?ProductId=9606

looking to use them to replace dead/bad drivers in standard p60 hosts drop-ins. Any experiences?

kragmutt wrote:

They're gonna send you a green redcat with a black LED.

Oldienea
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These are 1050mA single mode drivers. You can take of the three 7135 chips on one to upgrade three of them to 1400mA boards. So you end up with 4 useable boards for 8.50$. I use the chips also to upgrade other 5-mode boards.

Hrvoje
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I like AMC7135 based drivers very much. Here you have the same driver, but with 2-5 mode, depending on what stars are bridged.

 

http://www.dealextreme.com/details.dx/sku.6190

 

Hrvoje

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Hrvoje wrote:

I like AMC7135 based drivers very much. Here you have the same driver, but with 2-5 mode, depending on what stars are bridged.

 

http://www.dealextreme.com/details.dx/sku.6190

 

Hrvoje

 

Yes, this is my favorite. I use the AMC chips from the KD board to upgrade these to 1400 mA. Just solder one 7135 chip on top of one of these already present.

Budgeteer
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I'm already familiar with the DX one i recently used one to swap driver from sible mode to 3 mode bridging the 2nd star. Didn't know those are the same without modes.

What emitters are you all running at 1400mA? I guess if it is not an r5 they are being slightly overdriven?

kragmutt wrote:

They're gonna send you a green redcat with a black LED.

Oldienea
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Budgeteer wrote:

I'm already familiar with the DX one i recently used one to swap driver from sible mode to 3 mode bridging the 2nd star. Didn't know those are the same without modes.

What emitters are you all running at 1400mA? I guess if it is not an r5 they are being slightly overdriven?

 

Of course for the R5.

Budgeteer
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Ahh yes, the r5 could be driven at 1,5A if im not mistaken, r2 and q family at 1,2A max...

kragmutt wrote:

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Oldienea
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but good 1500mA driver boards are rare, at least in the budget price level.

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Wouldn't it be nice if someone sold an efficient (DX priced) driver that would ramp from something like 5-1500mA. No modes, just ramping, no memory, just start in low. I'd be putting one of those in everything I could get it to work with. Better still that will reliably deliver 1.5A to a white LED from an NiMH even though runtimes will be short. Then we have no real need of 14500s.

 

I don't care if it is low frequency PWM - that doesn't really bother me much and might reduce production costs.

 

The numbers from my light tests are always to be found here.

https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...

agenthex
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Better still that will reliably deliver 1.5A to a white LED from an NiMH

That's >5a.

Reading this makes you smarter: http://lesswrong.com/

Don
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agenthex wrote:

Better still that will reliably deliver 1.5A to a white LED from an NiMH

That's >5a.

 

So what?

 

Eneloops will hold their voltage to 8A. Any decent AA NiMH will do so, just not for a very long time. But a lot of 14500 lights on max have similar runtimes so I don't see this as a disadvantage.

 

The circuitry will have to be made with better than garbage components to handle the current, but that is already the case with any boost driver worth having. If this means it costs $5 instead of $3 so be it.

 

The numbers from my light tests are always to be found here.

https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...

agenthex
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That kind of current means just about every aspect of the light has to be engineered and built to high standards (ie not ill-fit commodity parts). I'm not saying it's impossible, but pretty miraculous should it happen.

Reading this makes you smarter: http://lesswrong.com/