Review: TrustFire TR-J20 - 12 x XM-L (3 x 32650) Chunky Monkey!

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Richie086
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Hi FlashPilot,

Purchasing the Trustfire 32650 Unprotected cells directly from Trustfire doesn’t save any money. But you do get top service from them and don’t have to worry about buying fake items. They also only ship Li-ions with proper labeling on the box and use approved shippers, so you likely won’t have to worry about customs finding them and sending them back to where they came from due to improper shipping labels.

Also, unlike normal online retailers that offer free shipping for a flashlight or batteries because shipping costs are built into the price shown, Trustfire doesn’t do this, so shipping is always added to the order.

So the 32650 cells actually cost $7.55 each and shipping is $44.63 for up to 1kg of weight. So it isn’t cost effective to purchase, say only 3 cells, so I opted for 6 of them and the shipping is the same. But it puts the total cost per cells at nearly $15.00 each, which isn’t to far off the price of other retailers, at least for the protected version. From my research, at this time, it seems the only place to get the unprotected Trustfire cells is directly from Trustfire.

They have an order in right now to replenish their stock of the unprotected version, so the ones I get will be as fresh as can be. So there will be a slight delay for me to get them which is about 2 weeks, but I’m fine with it.

Richie

Richwouldnt
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Richie;

Who is your TrustFire contact and their email address please, and with current post office battery shipping limitations is the shipping price you listed via DHL or UPS or some other non-postal air shipping company? PM the email address if you prefer. From what you say of shipping costs the price for FastTech to ship my TR-S700 must have been a bit steep. Maybe why the price with shipping was just under $120 with the BLF discount. At the same time the J20 is under $100 from the same source. Not sure of the logic as both are massive lights and with the added LEDs I would think the J20 would have higher material costs.

BTW your link does not work for Firefox. I think that you need to remove the ending close bracket.

Rich Wood
Reno, NV

Richie086
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Richwouldnt wrote:
Richie;

Who is your TrustFire contact and their email address please, and with current post office battery shipping limitations is the shipping price you listed via DHL or UPS or some other non-postal air shipping company? PM the email address if you prefer. From what you say of shipping costs the price for FastTech to ship my TR-S700 must have been a bit steep. Maybe why the price with shipping was just under $120 with the BLF discount. At the same time the J20 is under $100 from the same source. Not sure of the logic as both are massive lights and with the added LEDs I would think the J20 would have higher material costs.

BTW your link does not work for Firefox. I think that you need to remove the ending close bracket.

Hi Rich, the shipping price quote was for UPS. I’ll PM you the information.

Richie

FlashPilot
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Thanks for the update and your thoughts. Your delivered price seems reasonable from TF, considering that the cells should be of recent production, properly packaged for transit and authentic (although I doubt this cell would be counterfeited when considering its limited market). I wonder how many could be shipped @1kg weight. Any idea? The more the merrier. :bigsmile:

It will be interesting to see how well the TF32650’s hold up after 2-3 years. So far, mine have easily beaten every Chinese made cell Ive come across (in terms of their resistance to deterioration). I was seriously considering having a 9 or 12 × 18650 tube machined for the J20, but Ive been amazingly happy with the TF cells so far and will probably stick with them.

I’ll follow up again with Fasttech and see if they reply to my request for the unprotected TF32650. You guys might want to put in your requests as well. If they do finally stock them, they will also likely be of recent production and low price

Please let us know how your TF transaction goes. Ive heard nothing but positive remarks from others who dealt with TF direct.

Its still hard to believe this light carries the TF name…

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Thanks for the close up pics. The ano actually looks pretty decent to me in the pics.

I have a habit of gauging ano by looking at its sheen. The more dull it is the high quality! lol At least thats what my hypothalamus transmits to me.

Can anyone verify the relationship between the types of ano and their respective sheen?

RicFlair is on the air with blonde hair & pink underwear!! Whaoooooo!

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The fit and finish on my TR-J20 and TR-S700 are top quality. Although the price may be considered at the upper side of budget for either of them, the overall quality and value of these lights is much beyond what we’ve been paying for them.

Richie

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I just tested my stock TR-J20 with the new unprotected Trustfire 32650 cells I just received. Tail current was 2.97a on HIGH mode and a bit less than FlashPilot’s reading of 3.16a.

This same test using my KeepPower IMR 26650 cells yields 3.20a at the tail. I can only assume these new cells have so much capacity being 32650, voltage sag is bare minimum.

Richie

blueb8llz
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Thanks for testing. Is there a way to test the amps after 5 mins on high? I want to see how much amps both those cells dropped and see if the 32650s are really more superior over the kp 26650s from voltage sag

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blueb8llz wrote:
Thanks for testing. Is there a way to test the amps after 5 mins on high? I want to see how much amps both those cells dropped and see if the 32650s are really more superior over the kp 26650s from voltage sag

Hi blueb8llz,

There wasn’t much difference after 5 minutes as seen below. But I simply look at it, the 32650 is just a much larger fuel tank and should yield longer run times.

Trustfire unprotected 32650
Start amps – 2.98a
5 minute HIGH – 3.04a

KeepPower IMR26650
Start amps – 3.10a
5 minute HIGH – 3.18a

Richie

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what if your j20 was highly modded, and pumping out 14000 lumens….would the lights benefit from the 32650s now? ie…keep the lumens going longer and not dropping as fast due to voltage vs using the 26650 kp’s? or will it just be runtime still?

RMM
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Richie086 wrote:
I just tested my stock TR-J20 with the new unprotected Trustfire 32650 cells I just received. Tail current was 2.97a on HIGH mode and a bit less than FlashPilot's reading of 3.16a. This same test using my KeepPower IMR 26650 cells yields 3.20a at the tail. I can only assume these new cells have so much capacity being 32650, voltage sag is bare minimum.

Remember that with the stock boost driver the amps will actually be lower initially with a better cell with less voltage sag.  The amps actually climb as the input voltage decreases to maintain the same output.  

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Richie086
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blueb8llz wrote:
what if your j20 was highly modded, and pumping out 14000 lumens….would the lights benefit from the 32650s now? ie…keep the lumens going longer and not dropping as fast due to voltage vs using the 26650 kp’s? or will it just be runtime still?

Aside from sag due to heat, I’d have to say that for sure. Member, RMM, would be able to easily boost the output to 14,000 lumens for you.

Richie

smodtactical
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Hey guys been a while since anyone posted. This looks like an awesome floody light. Considering going for it. I already have a BTU shocker and a Ebay HID light and I love both of them. But both of them are more throwers and I thought it would be nice to have a strong flooder to round out the collection.

Any updates on the modding going on and maybe new beamshots of the modded TR J20 ?

blueb8llz
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Mine is still in the works. I’ll report back once it’s finished. But there are lots of other flooders out there that aren’t so chunky. Many are coke style lights. Lots of new ones are being released that’s gotten even more tiny.

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Richard at RMM built me a FET driver but I havent had the time to mod my TR-J20 yet. Sad Just to much going on at the moment…

Overlooking their mediocre build quality, the problem with most other large multi-emitter flooders is that they have fairly horrible heat sinking, which makes the TR-J20 an order of magnitude better.

@blueb8llz – what mods are you doing to your J20? Smile

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To me one of the big advantages of the TR-J20 should be run time at high output levels if you use 26650 or 32650 batteries in it. Also big enough and with good enough heat dissipation so it can be run at high levels longer after hop up. Any one have a USA source for good 32650 batteries? So far as I know all 32650 batteries are Chinese origin. So far very few lights seem to use this size.

Rich Wood
Reno, NV

smodtactical
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Alright I ordered it along with 4 TF 26650 batteries and a nitecore i4 charger.

Looking forward to it.

And yes the main reason im considering this over others is the awesome build quality and heat sinking as Flashpilot pointed out.

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Richwouldnt wrote:
To me one of the big advantages of the TR-J20 should be run time at high output levels if you use 26650 or 32650 batteries in it. Also big enough and with good enough heat dissipation so it can be run at high levels longer after hop up. Any one have a USA source for good 32650 batteries? So far as I know all 32650 batteries are Chinese origin. So far very few lights seem to use this size.

I've got some genuine Trustfire 32650 batteries sitting in Seattle, but I won't be able to offer them for a few weeks.  The protection circuit on them isn't that great and trips at around 5A.  I ended up pulling them off for use in my 9A MT-G2 Maglite.  

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Boro
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RMM wrote:

Richwouldnt wrote:
To me one of the big advantages of the TR-J20 should be run time at high output levels if you use 26650 or 32650 batteries in it. Also big enough and with good enough heat dissipation so it can be run at high levels longer after hop up. Any one have a USA source for good 32650 batteries? So far as I know all 32650 batteries are Chinese origin. So far very few lights seem to use this size.

I’ve got some genuine Trustfire 32650 batteries sitting in Seattle, but I won’t be able to offer them for a few weeks.  The protection circuit on them isn’t that great and trips at around 5A.  I ended up pulling them off for use in my 9A MT-G2 Maglite.  

Those 32650’s batteries just might be perfect for the group buy on the SD10.

blueb8llz
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18sixfifty is doin the mod. He is installing a true direct side switch driver. He will be drilling a hole and adding a side switch for me. Changing out all emitters to u3’s. And whatever else that he does to his crazy mods

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Do you know which driver mod (if any)?

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blueb8llz wrote:
Mine is still in the works. I’ll report back once it’s finished. But there are lots of other flooders out there that aren’t so chunky. Many are coke style lights. Lots of new ones are being released that’s gotten even more tiny.

The tiny ones cannot put out anywhere near maximum for very long unless they have temperature sensor controlled output and are used in situations that give excellent cooling. A windy cold night for example. I have a Supfire L1 that RMM did for me that is putting out 7000 Lumens max per his measurement but has a timer for step down from maximum. He also just returned a TrustFire TR-S700 that now has warmer XM-L2 LEDs on Noctigons installed, much thicker wires and the current sensor resistors bypassed. Not too sure of the output but per RMM it should be able to run at maximum output continuously. A big beast with a good heat dissipation path. Due to the switch design and continuously variable output the driver cannot be replaced which limits output possible. I really like the continuously variable output without either strobe or SOS as to me this is basically a single mode light, idiot proof.

Also talking with RMM about a hopped up TR J-20 with about 10,000 to 11,000 Lumens warmer output. He indicated that he has done several and no one has had switch problems YET! If you want a true high output light that can do it for long then it seems to me like you need the mass and heat dissipation of a massive light with a good heat path. At the moment the TR-J20 seems to be the best candidate.

Rich Wood
Reno, NV

RMM
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Rich is right, the smaller hosts just can't handle the heat produced by 12 emitters direct drive, even for a short period of time.  

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blueb8llz
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It’s a side switch direct drive blf fet driver. It came from cereal killer

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@12.5A at the tail, that thing must be an absolute flood monster! Although declining lumens from turn-on, Im surprised you can get half an hour in DD from those cells before a PC trips. Id call that some excellent brute performance for such a simple mod, and probably the only budget host made that can handle that amount of thermal torment so well. You must be very pleased. :bigsmile:

RMM
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The Evva protection circuits are beasts, but I'm not sure how long they'll last pulling them at 12A+.  Evva tells me around 7.5A-8A continuous is all they're rated for.

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smodtactical
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Beam shots during those tests?

FlashPilot
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Congratulations on your results. That light must be one heck of a fun flooder. :bigsmile:

In my experience, not all emitter failures are permanent when you overheat/over-volt/over-amp them. Sometimes you can view through the XM-L dome and inspect the bond wires for damage. If they still appear intact, try heating the MCPCB up to reflow temperature and push down on the dome while heat is still applied before allowing it to cool. I dont know why, but probably 1 in 5 XM-L emitters with intact bond wires that I thought I had fried, seem to find a new life after the reflow heat with pressure. Who knows… maybe the bond wires had become detached from the abuse, and the added pressure of the dome is simply pressing them back into position so they make electrical contact again. Either way, they seem to be good up to 3A again.

I should add that this has only been the case with XM-L on non direct thermal aluminum boards.

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Christ all mighty! That thing is going to bring on an early summer if you dont hurry up and turn it off!! Without the driver, you’ll be running at a higher efficiency in converting power into sheer lumens. Besides, who needs modes with a light like that? Im glad my reflow trick worked for you. If you have a DMM, can you check the continuity of the old star from the pads to the wire solder points? Im curious if a trace got melted. Thanks for adding some beam shots. They look magnificent!! :bigsmile:

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wow that j20 just put the k40m to shame, thats crazy cus the k40m is no slouch

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