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

Many thanks Doc.

Mousover version:

Tony, I've done a four-stack with these KD V2 3040mA boards to independently regulate each of 4 XMLs, and the MCU was able to control all 32 chips just fine. Just make sure that you remove absolutely everything but the 7135 chips from the slave boards. If you're using XMLs, which are pretty low Vf compared to other LEDs, you'll want to stick to the Vin range of paralleled Li-Ion cells to avoid the stacked drivers from over heating. Even 4.8V from 4*NiMH cells can quickly become too much when you're driving XMLs from a stack of these.

By the way, I love the map-light / moonlight low mode on these. It's why they're my new favorite driver.

just thought i'd mention it..kd will change the low from moonlight to 50ma if you email them..

hi all,
I would like any advice.

I'm new to modding lights.
I got the KD 8*7135 3040mah driver,when I solder it to a Xm-l emitter, I end up getting only 1 mode although I did not bridge any of the S1-S4 points. By default it should be 6 or 7 modes.
Any idea what am I doing wrong? I have followed the KD instruction sheet to solder accordingly.
Appreciate your help greatly.


philip

Is the reflector in place? Sometimes the metal in the reflector can cause a short (should have an isolation disk over the LED). I usually just check the pill and LED with the battery first, before putting it in a host. Also check your soldering with a magnifying lens to make sure you didn't overdo it anwhere and that no wires are crossed. If you have a DMM you can do some continuity checks.

See this post where I ran into a similar problem with the older 1.4A driver. It didn't look like I shorted it, but it must have been since it fixed my problem.

-Garry

Received the KD 7135 V2 3040 driver and really happy with it.

Made a P60 dropin with it using a NW XML emitter.

Just done a runtime test on low and here's my result

AW 3100mah battery

Starting Voltage: 3.83v

Ending Voltage: 3.79v

Duration: 1Day (exactly 24hrs)

Could anyone explain what to expect(Runtime on low) on a fully charge 3100mah batteries?

This happens to me all the time. The ground wire is shorted someplace usually to the outer ring were the ground wire connects. Try scraping the solder away between the ground wire connection and the outer ring and your modes should come back if not it's probably shorting to the reflector at the emitter connection.

I just ordered a completely custom modes driver. Almost nothing of the original modes remained in my spec.

At first they told me I'll have to make a 500pcs order. I asked if I can have at least 2 sets of modes custom and said I'd buy 5-10pcs. They told me that they can make my full custom modes version (and quoted it exactly) if I just buy 5 to 10 pieces and send order number.

Paid 5pcs today, sent the order number, they replied 1 hour later (actual e-mail reply to the same conversation) and said that my order is being processed.

Looks good so far. I'll send updates on how this goes. :)

Viktor

How about updating us NOW on the modes you requested

+1

Do you really want to get your hopes up and then get disappointed when I get the regular driver? :D

Hey!

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

Here is a quote from Kural.

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

Beacon2 is sweet. I would love that.

What I do is grind or file the tip down to a longer narrower point with a slight curve or hook and retin it. This allows me to get in around the other chips. A magnifying lamp REALLY helps.

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

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

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

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