Direct drive 17mm driver from Fasttech

This looks exactly the same as the one in my hd2011 GK003A7

I think it must be, someone mention that earlier.

Marc.

I musnt have read that :nerd_face:

No probs, I do it all the time. :wink:

Marc.

But it’s supposed to, right?

I’m looking for a driver like this but need the low discharge protection because it’s for a family member who will be running IMR.

Fastech website says it has but coulb like chinese lumens :exmark:

Have you measured how much seconds/minutes after power off it reverts to high mode?

thanks

Approximately 3 seconds

and do you know is this time set by/in MCU, would it decrease if I add (or replace that 334/330Kohm) resistor on top of that capacitor (for faster discharge)?

If you add another, or replace with a lower value resistor the cap should discharge faster, and revert back to high mode faster.

oh that's perfect :DI see some experimenting in near future :P

(I just wish those hot air soldering stations were cheaper :/)

+1.

It’s a good little driver. Even though it is DD it does not seem to draw too much, 3A is perfect and 1A on low. The thing I like so much is this simplicity. High or low, no nonsense. :wink:

Marc.

I received mine yesterday, about 2 weeks after I ordered it.
Tested mine in combination with one XM-L.
Freshly charged batteries (AW 2600, protected and NCR18650B 3400) it pulls up towards 3,3A on the tail. When voltage is a bit lower it will soon be closer to 2,7A.
Mine is not regulated, that is for sure. I would expect higher current if it was direct drive though.
On low, mine pulls 0,7-0,5 depending on the battery voltage.
I have not tested it with cells that are quite low.
Mine have next memory mode. :frowning: Not a fan of that, but not that annoying when only having 2 modes.
Its a little delay when changing modes where the light is all the way off.
Its a slight “whine” on low (like a nanjg 105C on low, only different whine).
I have not checked out efficiency.
Mine came with spring and wires.

For the price, I cant complain. I did not have high expectations either. But it seems like there are variations out there on this driver.
Compared to the one marcl got its easy to see that its not the same. Low is lower on mine, and I have next mode memory.
Based on my first impressions, its a decent 2-mode driver for the price.

Hi there:)))

I need some help here…:slight_smile:

I have an XML T6 light where I would like to change the driver to something stronger.

If I put this driver with 26650 battery (eyc. 4200mah king-kong) will it blow the t6?
As i understood t6 can work on max 3000mah.

Heat doent concern me… As this is a diving light and will be always under 23C’.

Thanks for your help!

it will be fine :)

Thanks for the fast reply!

Can You pedict the about current?

Also, will this work fine for an old 3xCree Q2 drop-in which i own?

:laughing:

Hi TiT,

Mine pulls 3A from my Sanyo’s, so that’s the kind of current you could expect from most good cells. 1A on low.

Marc.

I received this driver yesterday (no spring, no wires)

now, the big question: what would happen if I add another MOSFET (3400) that I salvaged from broken driver -> description and pics here ?

Additional question: can it drive only one XP-G R5 emitter or I would have to use 2 or 3 emitters in parallel connection?

I think this confirmed what I said earlier. This product seems to have variations too it… Basically, you cant be sure what you get.
Looking forward for updates on modes and output.

They send the same driver every time but the first weeks there was a wrong picture.
This picture is now updated. I tested the driver at some amps with 3 parallel XML for some minutes it got hot but nothing burned.

Anyone tested the driver at a voltage below 3V?
I have made a RMA but they haven’t believe me that my driver worked from 2.5V upwards…and I am too lazy to test a driver again I won’t use ever.