Review: NANJG 105A 2800mA driver

Thanks!

I screwed up some where I ended up with a 2 amp one mode lol I'm very happy with it still as its bright no strobe or s.o.s and I know it was my mistake

The two mode, "100% - 20%", is it normal it to draw 2.8A on High AND 0.27A on LOW ? :|

Yep it's OK. Some Taobao sellers actually say 100-10%, not 100%-20%. 10% of 2.8A is 0.28A Probably depends on batches or one description is older than the other.

Ok, actually I think it is a good amperage for my uses, 20% could be just a bit too high...

But there are drivers, that also have 20% low?

The only 10% low is on the two modes, the other lows are 5% on the 105C.

I wonder if there are 105C that have 20% on low. The tested Nanjg in this review is 105A.

The Nanjg 105C has two resistor on the left of the MCU compared to the 105A.

Have Nanjg 105C same mode groups like Nanjg 105A?

I guess mine are the 105C version:

http://www.intl-outdoor.com/amc71358-5mode-circuit-board-nanjg-105-p-216.html

Mine is the 105C version and pulls 0.28A on two-mode Low.

Is the PCB same for both 12F629 and ATtiny13?

I have not seen a PIC 12F629 on the Nanjg 105 so far.

Yes, sorry the 105A is like that. I am used to seeing the 105C. Actually the 105A is discontinued for quite some time.

DX have these driver. Finaly

Thanks for mentioning. Looking closely at the enlarged pictures I can see the letters "NY" on the MCU so I am confident that they are TINY13A.

Have ordered 3 pc.

According to the photo, the pin 4 of the MCU was connected to the ground which match the specification of Attiny13.

Hello guys ,

I wonder can I connect this driver to the LED missing one of the 7135 devices ? I want to reduce the power to about 2450mAh . Is this possible without physically removing of the 7135 device but just by soldering of the LED ignoring one 7135 ? And if this is possible - where on PCB should I solder the cables to the LED ?

Thank you very much in advance !

No, it's not, they are all connected in parallel.

However, you can cut a track leading one of them to disable a chip.

OK DrJones thank you ! Can you show me please which track should to cut and where on PCB should I solder the cables to the LED ?

If I were you I would just cut the legs off the 7135. Easier and less risk compared to accidental cutting wrong trace or overheat the board desoldering.