You could very well be right, so Iāll add:
4. The driver is a buck, and doesnāt have to pull as much current because the 30Qās are sagging less than the BDās
You could very well be right, so Iāll add:
4. The driver is a buck, and doesnāt have to pull as much current because the 30Qās are sagging less than the BDās
Thanks guys, Iām waiting for the code. This light is a good price and a real ball buster to be sure.
I should probably get twoā¦
RS.Freak bridged the Resistors and shaved the LED
he got 55.560Lux before and 108.400 Lux after the Mod (and a lot more Lumens)
-> his german review: Review ThorFire S70 [XHP70 LED] | Taschenlampen Forum
Thanks for the tip Martin
ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦.
WOW!
If you havenāt gotten in on freemeās groupbuy, do it.
First I bypassed both front/rear springs, then I re-did measurements of all modes with fully charged Samsung 30Qās:
Low: 0.26amps
Medium: 1.28amps
High: 2.53amps
Turbo: 3.95amps
Then I took the driver out and simply dropped a blob of solder on some empty pads, bypassing the stock sense resistors, and remeasured with the same cells:
Low: 0.23amps
Medium: 1.29amps
High: 2.93amps
Turbo: 9.20amps
Now these are tail numbers on a buck driver, so the emitter isnāt seeing exactly that, but I would guess the emitter is probably getting about 8amps.
If you do this you will want to use top-rated batteries because the buck driver will pull even more as the cells go down. Iām also going to pot the driver because I am sure it is going to get very very hot in there.
Could you take some pictures of the mods you did? Iām hopefully going to get this light and would like to be able to do these mods. Maybe some before and after pictures as well if possible. Thanks!
Yes, please take pictures of the mods, I have a ton of things to learn and pictures always help
Also, any chance you could make some before / after beamshots? With such a big increase of amp draw, turbo should show some differenceā¦ Although I suppose it will hard to know whatās from this mod and whatās from the shave.
Well I already potted the driver, so I canāt really get good pictures if it anymore, but I can maybe draw a picture of what to do, itās very simple.
I only have the original beamshots I took of the stock light. I can take the modded light to the same place and do a new beamshot, but we donāt have snow anymore so that will skew it.
Sorry, before/after stuff didnāt cross my mind because I donāt normally do beamshots at all.
What and how did you pot driver? Did you heat sink the FETs? Glop some thermal epoxy on? Inquiring minds need to know, how the proās heat sink buck driverās?
Whatever you think of my modding ability, I am the opposite of a pro at potting, mostly because I almost never do it. The only other times Iāve ever done it was for long-term physical durability, not heat.
I just know that buck drivers get very hot at high amperages, and I know that almost anything is better at moving heat than air. So I stuffed it full of Duct Seal. Itās probably terrible for this application, but still better than nothing.
is there a way to mod this light in a slightly less aggressive manner? I mean no blobbing all the resistors together creating a huge hot rod but to exchange them for higher output but still descent battery time? Mine is on the way and I am already thinking of tuning it.
Thanks!
Sure, you can add another resistor that has the same value. It should increase the current, though I donāt know the math so canāt say how much.
Try using the light first. Even in stock form it is very very bright. I would have also liked to de-tune it a bit from where I have it now, but I didnāt have any low value resistors.
Maybe my 2nd light will be tuned and I leave the first as is So same value resistor for the 3rd pads should be the way, thanks.
Ramping up for my first two reviews
The S50 and S70
Pics on the details done but too rainy for beam shots
The S50 lit up a nice part of the field next to us will try S70 after dark, canāt wait!
The S50 has a pill that is very easy to remove since there is no side switch.
If someone does not want a (second) side switch the S50 is easier to mod.
Is there a FET driver that will fit in the S70? Looks to me like theyāre all too small and youād need to make up some kind of contact board with the existing driver.
With the stock driver modded doing 9A+ I donāt think a FET would come to play, but what you can do is get a blank board and pot a smaller FET driver on top, it works the same.
I mainly want to do it for a pure side switch UI.
Anyone know the max cell length that can be run in the S70 ?
I note from another forum a poster saying that 67.7mm cells are a tight fit which would rule a lot of cells out ?
My longest Panasonic 3400mAh 18650 can be fitted
It is tight
I will measure them later for you
Thanks very much. I have just ordered the light & want to order 26650 cells ready for it & obviously donāt want to order cells that are to long.