Mag 1D SST-90 at about 2250 lumens built, D2Flex added

[overdog]

Hello,
I had the chance to put some custom parts together:

A William Quiles 1D high quality Mag shorty:
http://www.candlepowerforums.com/vb/showthread.php?t=239209&page=9

Britelumens excellent Deluxe Heatsink and reflector for SST-90:
http://www.candlepowerforums.com/vb/showthread.php?t=243474

Fivemega 4xAA to 1D very precise battery holder:
http://www.candlepowerforums.com/vb/showthread.php?t=198633

Also mudman cj´s 20 gauge teflon wire, a little bit modified mag stock switch, 4x 1,2V 2500mAh NiMH rechargeable battery, some arctic alumina and finally a SST-90-W65S-F11-GN100:

Sorry for bad picture quality, but it was hard to take a picture and to hold same time the wires to the tailcap:

I will post beamshots later.....

regards,
Steffen.

 

[overdog]

Re: Mag 1D SST-90 at about 2250 lumens built

here are the comparrison beamshots, left to right:
5x SSC-P7 custom light, Mag 1D SST-90, stock MTE P7:

Street at night without flashlight:

MTE P7:

Mag 1D SST-90:

5x SSC-P7 Penta-Pack:

regards,
Steffen.

 

[dutchguy2]

Re: Mag 1D SST-90 at about 2250 lumens built

Nice mod Steffen, me like it a lot

 

[Hocum_ams]

Re: Mag 1D SST-90 at about 2250 lumens built

Did you use serial pack of 4 NiMH ?
And directly contact battery pack to SST-90 ?
Or it have an electronic driver?
How long it can work?

If it works better if replace serail pack of 4NiMH to parallel pack of 4 14500 ?
I think 4NiMH will be give 9A ot 5 min only.

 

[tx101]

Re: Mag 1D SST-90 at about 2250 lumens built

+9A cool

I only managed to get a weak 3A out of my build
but I was using a single li-ion cell

Care to share how you modded the switch :naughty:

 

[ma_sha1]

Re: Mag 1D SST-90 at about 2250 lumens built

nice, what's the run time?

 

[Aircraft800]

Re: Mag 1D SST-90 at about 2250 lumens built

That's crazy that 4xAA can push >9A! I would expect that of "C" or "D" NiMh cells, but not AA! I suppose that's only 4C, and good High Rate NiMh cells can do even more. Did you use a MOSFETs to bypass the switch?

Nice Job!! Very Clean!

 

[moviles]

Re: Mag 1D SST-90 at about 2250 lumens built

nice , 9 amp direct drived and easy to build, :thumbsup:

 

[overdog]

Re: Mag 1D SST-90 at about 2250 lumens built

@moviles & dutchguy2: thank you, as a newbie I tried to build as uncomplicated as possible...
@ma_sha1 & Hocum_ams: I did´t test runtime so far, but beamshot above was taken after about 10 mins runtime- should be about 20 minutes total runtime with these batteries- I wanted to have a bright and easy to carry light, so I did not build with 4x D-Cell... may I put in a D2Flex new version at the weekend to have a choice between dim and bright to get more runtime...
@Aircraft800 & tx101: I didnt use a MosFet, I only modded the original switch a little bit: each part inside I made thicker or bridged with 20 gauge teflon wire and solder, only the ring in the center of the switch stayed original.

best regards,
Steffen

 

[kz1000s1]

Re: Mag 1D SST-90 at about 2250 lumens built

may I put in a D2Flex new version at the weekend to have a choice between dim and bright to get more runtime...
@Aircraft800 & tx101: I didnt use a MosFet, I only modded the original switch a little bit: each part inside I made thicker or bridged with 20 gauge teflon wire and solder, only the ring in the center of the switch stayed original.

best regards,
Steffen

Good job!

I have the new D2Flex in my light running at up to 7.3A without a problem.
The only thing different from running at 4A to 5A is that there is a whining noise at levels 2 to 4 only. George at TaskLED is rating the driver conservatively at 6A. The FET alone is rated for 10A. I haven't gotten up to 9A yet so you will be pushing the D2Flex harder than anyone else I know of. So be aware that there is a risk in doing so.

 

[overdog]

Re: Mag 1D SST-90 at about 2250 lumens built

Hello Dave,
thank you for advice, it´s the fist time I will use D2Flex- may I should have tried one before in a P7-Mag to know how this one works, but anyway- thats the fun I have with my new hobby, I never know, what happens next.... but if everything works, feels like :rock:...

 

[overdog]

Re: Mag 1D SST-90 at about 2250 lumens built

Before I try to put in the D2Flex, I wanted to share some pics with you using an aspheric lens:

this one is with Britelumens reflector:

...and this one with aspheric lens:

best regards,
Steffen.

 

[wquiles]

Re: Mag 1D SST-90 at about 2250 lumens built

Steffen - great build. Nice job :thumbsup:

 

[Dioni]

Re: Mag 1D SST-90 at about 2250 lumens built

nice , 9 amp direct drived and easy to build, :thumbsup:

+1

 

[supasizefries]

Re: Mag 1D SST-90 at about 2250 lumens built

Wow, great simple and very effective build you have there. You've hit the floor running full speed, so to speak. :twothumbs

 

[toby_pra]

Re: Mag 1D SST-90 at about 2250 lumens built

nice beamshots Steffen!

 

[jasonck08]

Re: Mag 1D SST-90 at about 2250 lumens built

Your direct driving the LED with up to 4.8V?! Isn't that going to fry the LED? Even if the voltage sagged to 1v or 1.1v per cell, that's still too much... isn't it?!

Can you measure the voltage @ the LED when under load?

What's the vF of the average SST-90's?

 

[Pummy]

Re: Mag 1D SST-90 at about 2250 lumens built

Damn you for making me now want to build one. My wallet and wife will come to hate this forum in the future. I love it though :thumbsup:

 

[jasonck08]

Re: Mag 1D SST-90 at about 2250 lumens built

Can anyone comment on driving the LED with 4x Ni-mh's. Thats gotta be bad for the LED, unless the voltage of the Ni-mh's sags from 1.2v to like .9 per cell. Quality High-discharge Ni-mh's should sag to about 1.1v per cell under 9 amps current draw.

@ overdog, please measure the voltage at the LED under load. Thanks!

Also what kind of Ni-mh's are you using?

 

[kz1000s1]

Re: Mag 1D SST-90 at about 2250 lumens built

I haven't had any problem with mine. No signs of overvoltage. I'm only getting 7.3A though.