[WTS] Remote switch tail DD board with FET

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Lexel
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[WTS] Remote switch tail DD board with FET

Annoyed with the low output with remote pressure switches for flashlight?

I did a board with a MOSFET to eliminate the extra resistance from the external switch
size 16-17mm, for 16mm the battery holder fins need to be cut a bit

If you want just one mode in direct drive you don’t need a driver in the head

I use a MOSFET with a low gate voltage which gets full output down to 1.8V

The MOSFET is powered by a CR1225 Lithium battery with 36mAh should run easily hundreds of hours on

Aliexpress has cheap remote switches, you could dismantle for the cable and pressure switch, or one that fits your flashlight
https://www.aliexpress.com/w/wholesale-remote-pressure-switch.html

Availiable just the board or board with switch (Switch, cable and plastic cap)
Board 4€
Board with switch 6€

shipping worldwide priority air mail
1,7€ for just the board
4€ for switch and board

tested them successfully

Edited by: Lexel on 09/20/2018 - 04:50
MRsDNF
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Looks good Lexel. I’ll check the piggybank tonight. Smile

My current and or voltage measurements are only relevent to anything that I measure.

Budget light hobby proudly sponsored by my Mastercard and unknowingly paid for by a hard working wife. 

djozz said "it came with chinese lettering that is chinese to me".

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.

 

pinkpanda3310
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I’ll take 3 boards please. Paypal it now Smile

Lexel
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9 boards build
10 more boards will be build soon
6 remote switches availiable

1. pinkpanda3310 3 boards
2. Tee 1 switch and board
3. MRsDNF 4 boards

Main driver bridged or set to single mode like Bistro or Biscotti

MRsDNF
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What is your PayPal?
Edit. I’m assuming these need a spring soldered to them for battery contact on the negative end.

My current and or voltage measurements are only relevent to anything that I measure.

Budget light hobby proudly sponsored by my Mastercard and unknowingly paid for by a hard working wife. 

djozz said "it came with chinese lettering that is chinese to me".

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.

 

MRsDNF
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Paypal sent for 4 switches. Thanks.

My current and or voltage measurements are only relevent to anything that I measure.

Budget light hobby proudly sponsored by my Mastercard and unknowingly paid for by a hard working wife. 

djozz said "it came with chinese lettering that is chinese to me".

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.

 

Lexel
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MRsDNF wrote:
What is your PayPal? Edit. I’m assuming these need a spring soldered to them for battery contact on the negative end.

yeah the center pad is for the spring
the remote switch has 2 small solder points near R4

basically the battery holder and R4 needs to be connected to the switch

sovereignknight
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Seems like quite an innovation there, Lexel.

You defiantly are a guru of flashlights!

https://en.wikipedia.org/wiki/John_3:16 

Flashlights:

x6 Sk68 modded 3 Nichia 319AT, 3 Cree XP-G3 - x1 Solorforce P60 drop in custom XM-L2 U4 1C, Qlight Rev.A 7135*8 3.04A Driver - x2 Lumintop EDC05 CW - x2 Jaxman E2L tripple XP-G2 S4 
x1 Jaxman Z1 Zoomie, Cree MT-G2 Q0 LED - x1 Acebeam K40m thrower with MT-G2 Q0 LED - x1 Xintd SC-82 V5 Limited Edition C8, XM-L2 U4 1C, Qlight Rev.A 7135*8 3.04A Driver
x1 Convoy L6 moded with a Cree XHP-70.2 P2 1D LED - x1 Rare Olight x7 Maurauder with a Nuetral White LED - x1 Astrolux MF-01 Nichia 219c - x1 Astrolux MF-01 Cree XP-G3 - x2 Zebralight SC5w MKII  

x6 Lumintop Tool AA - x1  x2 Lumintop Tool AA 2.0 - x1 Lumintop ODL20C - x1 Lumintop GT mini - Olight i3E EOS - x2 Zebralight SC600w Plus MK IV XHP 50.2 4500k 80 CRI - x1 Fenix CL30R - x1 Lumintop C01 Bike Light

MRsDNF
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Got these switches today thanks. Now what lights to build to use them in? Smile

My current and or voltage measurements are only relevent to anything that I measure.

Budget light hobby proudly sponsored by my Mastercard and unknowingly paid for by a hard working wife. 

djozz said "it came with chinese lettering that is chinese to me".

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.

 

luminarium iaculator
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MRsDNF wrote:
Got these switches today thanks. Now what lights to build to use them in? Smile

Hmmm… Let me guess? Hunting thrower lights of course SmileThumbs Up

I already got one from Lexel, modd it with my rat tail switch and confirmed that it does not have any lux drop in single 18650 cell fet driver combination.

Lexel is very smart guy Smile

Modding is making something how you want it to be, not how it comes stock...

Old-Lumens

MRsDNF
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luminarium iaculator wrote:
Lexel is very smart guy.

No argument from me. A real asset to BLF. Beer

My current and or voltage measurements are only relevent to anything that I measure.

Budget light hobby proudly sponsored by my Mastercard and unknowingly paid for by a hard working wife. 

djozz said "it came with chinese lettering that is chinese to me".

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.

 

Zappaman
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Lexel sent me a pair of these FET “switch” boards for my Pig Gun C-8 light mod- I got them today! (thanks Lexel!) The C8 is finally in LA (from Hong Kong) according to Kaidomain’s tracking email (which didn’t work for about a week… I was worried for a bit there) LOL

Being a newbie, I am figuring out things reading up on stuff around the site this last week and I saw a post today on a 3 led kit (sold at AliExpress) from a few months back I might get into now (I THINK it fit the C8?) undecided Lexel explained he was also working on a project here co-designing a driver that would work best for a hunting rig like mine (one mode- off and on). Wondering if this driver (or one like it) could be used with the 3 LED kit for say somewhere around 4k lumen (from one 18650)?


Learning every time I come here. Grad

ZappaMan

Lexel
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There is a C8F Sofirn sells as host or full light with triple XPL MCPCB and reflector

Snipr
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Lexel sent me a pair of these nice stuff too… I just made some dirty hack for one of my Convoy C8 (factory tailcap + cheap remote switch from china + this nice FET switch), it works like a charm Smile absolutely no light loss, in fact with this FET remote I measured a little bit better values than with the factory tailcap!

Nice work Lexel and thank you again!

ps.: I will recommend it to my hunter friends Wink

pscal
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I’d like 1 board with switch please. Looks great! (pm sent)

The_Driver
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What happens when one actually presses the switch? Momentary on or constant on?

Have you thought about making a version with clicky switch to replace normal switches in high-current lights?

Lexel
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The build is 1:1 as you switch the FETs gate it is conductive

The main thing besides a normal clicky is that most lights tail caps wont allow the added thickness of the battery holder with the switch above it to twist in the retaining ring

Zappaman
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I have two boards and have built/tested one of them. Constant on.

I did have to file down the open end of the black plastic insert (that the wire goes through) so the board would be deep enough to allow the retaining ring/screw to crank down on the board properly. I also used some shrink tubing at the wire’s connecting end to the board (and a 16g small wire crimp around it) for strain relief. When I build #2 up I’ll take some pics and post here.

ZappaMan

DrafterDan
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Sent in request for one complete setup.

I’ll plan on taking some photos as well.

~Daniel

have light, will travel