Review: KD 7135 V2 drivers 3040/2280/1520 mA with mode configuration

[Rufusbduck]

@Jeansy

Thanks guys, I'm not worried about giving it a try with the soldering iron and I quite like the user selectable modes so I'll give it a go.

Hooray for you. The difference between having and knowing how is doing.

[NightCrawl]

For those with a too large solder iron: wind some copper wire around the tip.

[Lagerregal]

@viktori

Now, I have no idea if anyone else should order custom as well. I did tell them that if all goes well I'd be telling my friends and they will get more orders.

I'm the crash test dummy again. If anyone orders, please tell me about it. Perhaps PM me and I'll tell you my order number so you can quote it if you want the same thing.

Viktor

do you have any news? i am interested in ordering as well :)

[viktori]

Yup, arrived yesterday!

I got 5 pcs, one already in a flashlight, and that one works almost as expected.

Will post more info in the next few days.

Viktor

[TNT]

Thanks to victori, I contacted KD with my own request and they said it should be fine, send them an order number of 5ea of these drivers and they will look into modifying them... I requested:

1. Original setup

2. Original setup

3. High - Low2 (10%)

4. Low2 (10%) - High

5. High - Low2 - Strobe

6. Low2 - High - Strobe

7. High - Med (30%) - Low (5%)

8. Low (5%) - Med (30%) - High

This should give me unlimited possibilities of modding for XPG at full power, XML at full power (by default) and adding 4 more chips for total of 4.5A for Triple XPG or Nichia... Should be awesome if they fulfill my request... fingers crossed... If they do, I know I'll never buy any other linear driver as this would cover for everything... :-)

[DrJones]

I still wonder what microcontroller they use...

[Lagerregal]

@viktori

I got 5 pcs, one already in a flashlight, and that one works almost as expected.

Will post more info in the next few days.

that are great news :) looking forward to your information

[Sprinkles]

@DrJones

I still wonder what microcontroller they use...

Same here.....

[Sprinkles]

It would be nice to see this driver be able to handle using a single primary 123 battery. I don't know what would need changing in order to have that happen....it looks more specifically suited for 3.7v not 3.0v.

Can anyone spread some "light" on that for me? (pun intended :) )

[pounder]

got 2 of these drivers I ordered awhile ago..they flashed them so my modes are ~3a, ~1.35a, ~.070a..awesome spacing...

[JustFit]

@viktori

Hey!

I didn't say no, did I? :)

Here is a quote from Kural.

Hi friend,

We can help you modify the driver as below:

XXX 3040mA 1500mA 500mA 150mA 30mA 5mA 10Hz 2Hz Beacon1 Beacon2

OXX 5mA 30mA 150mA 500mA 1000mA 3040mA 10Hz 2Hz Beacon1 Beacon2

OOX 3040mA 1500mA 500mA 150mA 30mA 5mA

OOO 5mA 30mA 150mA 500mA 1500mA 3040mA

XOO 3040mA 750mA 200mA 50mA

XXO 50mA 200mA 750mA 3040mA

OXO 3040mA 1000mA

XOX 3040mA 1000mA 2Hz

Beacon1 is 10sec off, 1sec on

Beacon2 is 10sec off, 1sec 3Hz strobe

You can just buy 5 pieces or 10 pieces is okay, please make a order on http://www.kaidomain.com/Product/Details.S020073

After you paid, please send your order number to me and let me arrange it.

Now, I have no idea if anyone else should order custom as well. I did tell them that if all goes well I'd be telling my friends and they will get more orders.

I'm the crash test dummy again. If anyone orders, please tell me about it. Perhaps PM me and I'll tell you my order number so you can quote it if you want the same thing.

Viktor

Thank you for the info viktori . It's good to know they also flash them custom

[JustFit]

Question : Has anyone tried giving a good tap to the flashlight that has one of theese drivers installed?

I recently bought two KD 6x7135 V2 LED Driver 2280mA , I've installed them in two UltraFire XM-L T6 WF-504B , used different settings , and if I tap anyone of them while on High Mode, it automaticaly goes to Medium Mode, the memory mode S1 brige is connected so even if the battery would disconnect for a fraction of a second it wouldn't have to do this. I've noticed this odd thing because I'm using them on my bicycle...

[pounder]

yes mine switches too if I hit it..a solution is to snug up the battery with tape or cardboard shims and/or adding a small standard p60 spring to the existing spring..I had to add springs to the old 105c drivers because the stock ones wouldn't contact the battery..i'll have to do the same thing to these drivers..

here is a link to pictures of what I did with the extra spring..the copper wire was left as it was more hassle to remove it than to just leave it..

https://budgetlightforum.com/t/-/1752

[JustFit]

@pounder

yes mine switches too if I hit it..a solution is to snug up the battery with tape or cardboard shims and/or adding a small standard p60 spring to the existing spring..I had to add springs to the old 105c drivers because the stock ones wouldn't contact the battery..i'll have to do the same thing to these drivers..

here is a link to pictures of what I did with the extra spring..the copper wire was left as it was more hassle to remove it than to just leave it..

https://budgetlightforum.com/t/-/1752

The spring was also my first tought , probably when you tap it , for a fraction of a second there's a weak contact at the + end, and because of this the voltage drops below 2.8 V and the protection kick's in , which sets the output to 35 % ...

Thanks! I will try it. (and will probably work )

[pounder]

@JustFit

@pounder

yes mine switches too if I hit it..a solution is to snug up the battery with tape or cardboard shims and/or adding a small standard p60 spring to the existing spring..I had to add springs to the old 105c drivers because the stock ones wouldn't contact the battery..i'll have to do the same thing to these drivers..

here is a link to pictures of what I did with the extra spring..the copper wire was left as it was more hassle to remove it than to just leave it..

https://budgetlightforum.com/t/-/1752

The spring was also my first tought , probably when you tap it , for a fraction of a second there's a weak contact at the + end, and because of this the voltage drops below 2.8 V and the protection kick's in , which sets the output to 35 % ...

Thanks! I will try it. (and will probably work )

yeah the spring rate on these drivers is really stiff..so any shot is going to lift the battery off the spring and not allow for a compensation like you get with these weaker p60 springs..it's really easy to fit the new spring on the existing spring..you just have to make sure the diameter of the part going on the stock spring is tight then feed solder to join..

[viktori]

I've posted an article on my custom ordered KD 7135 V2 3040mA LED Driver:

KD 7135 V2 3040mA LED Driver with custom modes

KD 7135 V2 3040mA LED Driver with custom modes A while ago I contacted KD and asked if they can make a driver with custom modes. At first they told me an absurdly high number as a minimum order, but after a some persuasion they agreed to make it if I buy 5 (or more). Some people report that ordering 2 is enough for KD to make a custom version. Here is my review of a custom made KD 7135 V2 3040mA LED Driver. [image] [image] [image] I chose mA settings based on Match's chart from his XM-…

Viktor

[Lagerregal]

the drivers are now available with 50mA low mode at kaidomain. but you need to buy 5.

[FX-32]

@Andi

Piggyback works fine, i soldered 2 extra 7135 (350mA) on it, and driver delivers 3,74A.

I bought some of them to give it a try, I tried adding an extra 7135 (350mA from the V1), but when I connect the chip the driver doesn’t turn on…
Why can this be? maybe the extra 7135 is damaged? or maybe they should be inserted in some specific order?
If someone did it before with this KD V2 I would like to know where to connect the extra 7135

EDIT: I did this before with the V1 version, at first it didn’t work until E1320 helped me with the order, and since then it always works… but this new driver is giving me this problem again

Here is a pic of the not working piggy mod, it is not fully connected

[MosesM]

Hey FX-32, I haven’t tried stacking 350mA and 380mA chips together, but strictly judging from your picture, are the middle legs soldered together?
Reason I’m asking is because when I stack them, I usually solder together the larger tab at the back instead of the middle leg since they are the same anyway (if that makes any sense).

[NightCrawl]

I have mixed different AMCs and it worked.. if that's any help for you.