WTB: Jetbeam RRT01 – Any place to buy it?! + [RRT01 2019 discussion]

I didn’t measure it clemence but it’s definitely not 16mm. I’m guessing 14mm or smaller. I already modded the light with a LH351D 4000k 90 cri, turned up the current, and larger emitter wires, so its back together now. :smiley:
Looked to me like it was about the same size MCPCB as the V11R, which is a 14mm.
The MCPCB has two holes that are only partial drilled so that the MCPCB holding screws are counter sunk. Changing the MCPCB would be challenging unless you didn’t use the screws and let the reflector apply pressure.

Its making 900 lumens now of high cri light. :smiley:

Fairly easy to mod, toughest part is the same with the V11R, getting the head and control ring apart, blue loctite. Wasn’t to bad though.
It does have a lot of parts to keep up with.

I like the idea of the 8 indents as it would make it feel more mechanical, also holding it where you put it.
It would also be good for helping you to know approx runtimes for example, feeling 3 micro clicks might = 1.5 hours runtime, making it less guessing for runtime.

I like the heatsinking copper to brass to aluminum & SS for drop protection.

I took several pics while I had it apart, I’ll try to do a proper right up tomorrow. I really like the light, but I’m a control ring fanboy.
I always wanted the old RRT-01 but never got a chance to buy one, so when the new one came out, I had to have it. :confounded:

Thank you Moderator007. I have one in route, should be here by the end of the week. Glad to see getting at the emitter isn’t a huge issue. Blue Loctite hasn’t stopped me in the past. :slight_smile:

I have a LH351 in 5000K and a Luxeon V2 5000K. Haven’t decided which one it will get yet. I put a Luxeon in a V11R. Didn’t have a 13mm or similar board for it so I had to make a 10mm one work. Reckon I will just reuse the RRT’s board and do a reflow. I didn’t notice any CCT number in the spec of the new RRT. Can you make a guess at what it is in stock form?

Thanks again.

Thanks 007, I still might get one out of curiosity.

- Clemence

I told you wrong Clemence, the V11R uses a 12mm MCPCB. The RRT-01 seemed about the same size.
I will try to take the bezel off tomorrow and check to be sure.

Sorry but I didn’t play with it but a few minutes until I started taking it apart. :person_facepalming:
Under UV the xpl hi is yellowish orange if that helps.

Looks promising so far. Any word on low voltage protection?

Too bad the pill isn’t made from aluminum or copper.

- Clemence

Thanks for your reports on this so far :wink:
BTW, did you take some photos on the “stock” LED beam?
We’ll be looking for some more comments on this :+1:

The pill is good ole cheap brass. I just checked for LVP, I dont know exactly what it’s doing, I put a very old trustfire 16340 in it. It worked on high for a few seconds then went into a flashy mode. It’s like 10 really quick flashes pause a half second 10 really quick again and then again then a 2 second pause then it starts over again. It doesn’t stop until the light is turned to off or the head screwed off. The battery is at around 3.0v when I pull it out and test it.

I hooked it up to my power supply and it never experienced the flashy mode even down to .7v with the current set high so it could draw all it wanted.
I’ll try the current then, set the voltage to 4.2v, reduced the current slowly, at .44a the flashy mode showed up. At .45a normal operation.
This was all done on the highest setting on the control ring. So it has some kind of protection but most batteries would be dead by the time it could only supply 440ma.
On the power supply at 1v the input current was almost 2 amps. Uses the same PAM2803 316BCG combo the V11R does.

I noticed the sense resistor on the RRT-01 driver is .05 ohms and stock reported about 800 lumens. Which when I modded the V11R, that’s about what I got using the same sense resistor. I changed the V11R to a .033 ohm sense resistor by stacking a .100 ohm on top of the .05 ohm. Did the same mod to the RRT-01 and pretty much got the same results, 900 lumens.

No photos of the beam before the led swap. :person_facepalming: Now it’s very comparable to the V11R beam, the RRT hot spot seems a little brighter in a side by side comparison. Enough to notice it. I get more excited about modding a light than I do receiving it.

A persistent blinks is good enough. Based from your description it’s not an LVP. More like a LCP, or LPP. Strange. So it’s still an interesting modification base. So far what can be improved are:

- Redesigned aluminum/copper pill. I see a there’s room for bigger MCPCB

- TIR optic

- Better LED

- Smoother rotary movement or perhaps smaller notches for more precise stops

  • GITD components or blinking flashlight locator
    As for the output, it’s already more than enough in my opinion. 500lm in 90+ CRI is my goal, should be not that hard.

.

  • Clemence

I’m just gonna drop some pics here since this thread already has a lot good of info in it.

Taped up to remove the head in a vise and vise grips.

Comes a part fairly easy but mine couldn’t be done by hand, Blue loctite.

Pill and control ring. The wires are pretty small (maybe 28AWG).

Pill with MCPCB removed.

Driver top.

Where the driver goes in held with a screw and Retaining ring.

Original sense resistor .05 ohm.

Stacked .100 ohm resistor makes .033 ohm total, 900 lumens at start up.

I changed the led wires to 24AWG and swapped the led for LH351D 4000k 90 cri, you can also see the screws that hold the MCPCB down.

The pieces from the head removal, driver or MCPCB not taken out yet in this photo.
Bezel isn’t glued, press it against something with grip, like a big wide rubber band or leather and it spins right off.

Nice sub-lumen LOW, doesn’t even register in my lumen tube.

A pic beside It’s brother from another mother. V11R is smaller in diameter but the RRT is smaller in length.

Love these control ring lights, dial in just the right amount of light UI, sweet. :smiley: :beer:

Big thanks 007! This looks like a go for me.

- Clemence

Clemence the opening for the MCPCB is 13.5 mm.
I measured the parasitic drain at off between 15 to 60 uA, it fluctuates up and down.
The color of the RRT has a gray hue to it, it looks black but it’s like a really dark gray, almost black.
The difference can be see beside the V11R pic.

thanks for sharing all the info
with outstanding photos!

@moderator007 can you tell me diameter of reflector? Triple led maybe fix

According to the measurements of the MCPCB, that would be complicated, it seems…
The pill might have to be modified, no?

Sure, looks like 18mm. This new RRT is made exactly like a V11R in most ways. I have seen a triple V11R on this forum some where.
I found it. My new Triple XPG2 Sunwayman V11R Mirage
If I remember correctly, the MCPCB isn’t setting on the led shelf. I think chibim said it was setting on the top of the pill.
Looking at the pics above, the one showing the screws in the MCPCB, the triple MCPCB sets above the led at the top of tube where the led sets now.
Its not really a good heat path. It might could be filled to improve that though. You could shoot chibim a PM and ask how he done it.
This RRT should be moddable by the same method I would think.

I ordered two RRT01 from HKequiment, i will disassembly and mod triple led when received