Can I get an opnion on this driver board please?

[MoreGooder]

I ran across this:
http://www.suntekstore.com/5-mode-led-driver-dimmer-circuit-board.html

It appears to be a boost board, with miltimode. BUT, I can't tell if it will provide a constant power output.

Opinions?

thx
MG

 

[old4570]

http://www.kaidomain.com/ProductImages.aspx?ProductId=7949

Looks a lot like this one = Junk Driver !

Looks similar , if it does not have the thermal protection , it might be ok .

 

[ifor powell]

I don't think they are the same at all. I think they are different configurations for a start. The original I would guess is buck/boost given the quoted voltage range of 2.8-4.2. The second is clearly buck. The first has a hole back side full of components compared to the second. The just look to have a similar inductor and fet....

As no-one has said much about the first I would encorage the MG to get one and let us know what it's like. If it works anyway decently then for the price can't be bad.

Ifor

 

[T0RN4D0]

Well its not really obvious, but the first one actually says this;

Designed to work ideally with two 2.7-4.2V lithium-ion batteries (Batteries not included)

Which would suggest to me that the input is actually 8.4 (or more) volts and its a buck driver too. The moron that put up the description put the whole li-ion voltage range and doubled, which is misguiding.

 

[TorchBoy]

http://www.suntekstore.com/5-mode-led-driver-dimmer-circuit-board.html is less expensive than http://www.kaidomain.com/ProductDetails.aspx?ProductId=7947. (http://www.kaidomain.com/ProductDetails.aspx?ProductId=7949 is the 5 pack.) http://www.e-lectronics.net/3mode-driver-board-with-memory-2x18650-p-464.html is even more expensive.

The blank board in the KD photos appears to just be there for a size comparison.

http://www.candlepowerforums.com/vb/showthread.php?t=255090 is your review, old4570.

 

[MoreGooder]

Thanks everyone.

I also found this one:
http://www.shiningbeam.com/servlet/the-134/3-dsh-Mode-Perfect-Regulated-Circuit/Detail

and decided to go with that one. It also appears on the Aqualab research LED driver list. http://www.videofoundry.co.nz/ianman/laboratory/research/driverlist.php

I'll be using it for my custom build apsherical flood-to-zoom. I especially appreciate the fact that it is Hi-Med-Low. No stupid SOS or strobe. SCORE!

You folks are incredible. lovecpf

 

[TorchBoy]

When you get it can you please have a good look to see how it works? It's in the Driver List as a boost/buck driver, but I suspect it's actually an AMC7135 driver, which means its input voltage will actually be 3.3-6.6 V, and the battery voltage will need to be at least 0.12 V above the LED Vf to stay in regulation.

Edit: Then again, it looks like it has an inductor on it, which is probably why I listed it as boost/buck.