PhlatLight SST-90 1xC IMR 26650 build

PhlatLight SST-90 1xC IMR 26650 Top Bin Beat Mag 85!

This is Part A of the 2000 lumen 1xC build.

I decided to take apart my Kel-lite 2C ROP Hi & build the SST-90 with it.
The ROP was out-shined significantly by my Mag 1D 1185 3x17670 set-up lately & it's time to retire the 900 lumen "loser" & put the body to a better use.

The Vintage Kel-lite was built like a Tank. It's got real beefy body & head, thicker aluminum than mag lite. From heat dissipation angle, which is my main concern for this monster LED, I felt that it's a better host than mag C for sure & maybe even better than mag D as it's heavier than 1D mag host.

If I am lucky & able to direct drive the SST-90 to full spec, that's 9A or 36W of power, lots of heat to worry about for LED.


I started with a metal SMO reflector, enlarged the hole, then trimmed the SST-90 star to fit:




The Mag reflector needed some sanding job on the side & I managed to make it fit into the Kel-lite head, which is almost identical to mag head in size & use the same 52mm lens. There won't be any nasty cross or hole like P7, so I am going with SMO for some throw.



Now, screw it into the bezel, the fit is just Perfect!
Look mom, no seams!:thumbsup:



This is my battery of choice, 4000 mAh IMR 26650, able to deliver >10A
but with much higher capacity than AW IMR 26500. The plan is to do Direct Drive. It'll give me ~25min at 9A, but if DD can't deliver 10A, I may end up with 7-8A for >1/2 hr run time, good enough for me. I don't know what current I'll be able to get yet, but I am not aware of a better battery for the SST-90 than this one, especially in C-size.


Another good news, the 26650 slide in perfectly!. This Kel-lite tube is just slightly larger than C Mag tube (~0.5mm larger in ID) & just fit the 26650 without the need to enlarge the battery tube like some had to go through to fit AW 26500 IMR to Mag C. I got lucky here!


When it's all finished, It'll be mag 1C sized single led/single-die monster,
hopefully pumping out >2000 lumens as claimed & beat my mag 1D 1185. We'll see!



This is it for now. The next part will be making a beefy Copper Heatsink for it, I've got a plan but need to wait for my raw materials to arrive.

Stay tuned for Part B.

Re: PhlatLight SST-90 1xC Li-ion Build

Reserved for Part B.

Re: PhlatLight SST-90 1xC Li-ion Build

Very cool! I just wonder about the switch being able to handle the high amps. But if it was ok as an ROP.

Thanks & The switch should be able to handle >12A.

I've taken the switch apart to clean it before, it's two wide copper plate pressed against each other when in "On" position. It's about 3 times as wide than the metals plates in the mag switch core.

With the simple mechanism & wide copper plate, it looks to me that it can handle about 2-3x what mag switch can handle. If mag switch does 6A no problem (5761 use), this switch should be able to handle >12A no problem.

I'm going to be watching this build because I've got a similar plan for a 7 D Kel. I haven't determined a battery configuration yet. I like what you have done so far. What will you be using as a heat sink?
Kel lite with 4D M*G

Have you powered the LED up with the reflector in place? Typically the led has to sit up about 1/4" into the reflector to focus.

Mac

Fresh Light said:

I'm going to be watching this build because I've got a similar plan for a 7 D Kel. I haven't determined a battery configuration yet. I like what you have done so far. What will you be using as a heat sink?
Kel lite with 4D M*G

Click to expand...

I am using a pure copper heat-sink, weight in at 0.6 lb , will need trim to fit.


For reference, here is a regular Alu. heatsink for C Mag: Weight in at 1/20 the weight.

cmacclel said:

Have you powered the LED up with the reflector in place? Typically the led has to sit up about 1/4" into the reflector to focus.

Mac

Click to expand...

Mac, while cutting/enlarging the reflector, I tested my reflector focus point with another LED, and have figured out where the focal point is roughly, as you pointed out, it's about 1/4 " in from the bottom. The bottom of reflector has been shortened by 1/8" already & I also cut the hole big enough to allow the trimmed star to go all the way into the reflector & raise the LED further up within the reflector. But I haven't get to work on fitting the copper heat sink yet, so far not daring to fire the SST-90 up at the moment.

I'll step-trim the Copper heat sink to fit until I reach the ideal height of LED to the focus point.
Also, the Kel-lite has some small room to adjust focus, allowing fine-tuning at the end.

Hi Ma_sha!

Where did you get that heatsink, looks masive, Looks like it came from a PC? Got any specs?

Thanks!
AlexGT

got it from ebay, orb cpu cooler round shape

Where did you get that

"4000 mAh IMR 26650"


I want a couple of those cell:twothumbs

from battery space:

http://www.batteryspace.com/index.asp?PageAction=VIEWPROD&ProdID=5161

nice battery :thumbsup:

Hi again Ma_Sha1!

I looked in ebay but could not find the heatsink you have, can you direct me to the seller or the auction?

Thanks!
AlexGT

I am out of town for a wk, using PSP w/o ebay access. try search soket 370

thermaltake sells a mini copper orb (search "thermaltake mini copper orb") that is 6.5cm diameter, and his heatsink looks like the core of that with the alum. fins removed

hi ma_sha,
Where did you buy the SST-90. I have been searching, and not many retailers available.
Thanks.

it's a sample bought from CPF marketplace

mickeyjc said:

hi ma_sha,
Where did you buy the SST-90. I have been searching, and not many retailers available.
Thanks.

Click to expand...

Avnet Express
SST-90