Fireflies ROT66 Flashlight

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Newlumen
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I was about to mention sst20 have good throw.. this light is a little beast..

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SKV89 wrote:
The SST-20 throws farther than the XP-L HI https://www.candlepowerforums.com/vb/showthread.php?449829-Lumintop-GTvn...

I’m not sure if it throws farther in the ROT66, or just in the GT-Mini. Regardless, the ROT66 isn’t a throwy light no matter which emitters it uses.

As a side note, looking at Vinh’s throw numbers, everything looks about 30% to 40% higher than it should be. I’d suggest multiplying those by about 0.75 to get more accurate numbers.

SKV89
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Vinh’s numbers are a bit higher than measured with Maukka’s calibration but I think 0.75 is a bit much. I think I measured about 1,200 on my XP-L HI 4000k version and others measure 1,2xx lumens with the XP-L 5000k or 6500k version. Vinh measured 1,300 lumens on the 6,500k version.

Edit: Oh sorry you mean throw numbers not lumen numbers.

ToyKeeper
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SKV89 wrote:
Edit: Oh sorry you mean throw numbers not lumen numbers.

Yeah. The GT-Mini with XP-L HI gets about 120 to 130 kcd, not 170 kcd. And I’ve noticed similar differences on other lights.

Anyway, the ROT66 seems to work pretty well with SST20 emitters. I still prefer 219B though.

Newlumen
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Do you think it is cheaper to buy it from illumn ?

twisted raven
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SST-20 is like XPG2 sized die, so dedoming it should be pretty equivalent to dedomed XPG2— probably a little less throw. I can see SST-20 dedomed out-throwing the XPL HI.

Once I get my SST-20 4000k with 804 filter over it from Vinh, I will vigorously compare it to the 219B version. The LH351D 4000k + 804 has a nice tint, but it’s just too floody for my tastes. Others will probably like the sheer output and wall of light kind of hotspot it produces.

Newlumen
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Rot66 Sst20 CW

Samsung 30q. 6300 lumen.

After cleaning the contact and carrier..

Samsung 30q.. 6800 lumen.
Sony vtc5d. 7000 lumen

I cleaned the battery carrier with the alcohol when I tested it with the Sony.

twisted raven
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I use liionwholesale. Great prices.

SKV89
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Recently I bought two big orders from 18650batterystore.com. They have good sale items all the time.

BlueSwordM
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@raven+SKV89, that’s not the problem klrman is facing.

It’s two things:

1. The US dollar is stronger than the Canadian dollar.

2. But most importantly, lithium ion shipping is stupidly expensive in Canada.

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

Newlumen
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klrman wrote:

Newlumen wrote:
Do you think it is cheaper to buy it from illumn ?

 


 I buy often from Illumn, they are the best, but I wanted to save a few bucks.  3×30Q from ff cost me $20CAD and from illumn will cost me $43 CAD.

I agree. I hope fireflies find a way to send you those 3 samsung 30q.

BlueSwordM
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Yeah that is going to be really hard, especially to Canada.

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

2100
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Over here in Singapore, we’d use “sensitive air” option from 3rd party forwarders to ship Li-ion from Taobao. First kilo is SGD 11, subsequent 0.5kg SGD 4. Of course to make the most out of the consolidated shipment, you can send other orders as well, eg other flashlights from other sellers, and then consolidate the shipment before forwarding it to the destination country.

Don’t even think of smuggling in by trying to camoflauge the order (customer raises an order and pays for innoculous item A, ask seller to change the price, seller ships 12 × 18650s Smile ) or mis-declaring it on the performa invoice. Both the goods warehouse and air freight carriers scan their goods very tightly nowadays. Esp after recent few years some buggers used this route to smuggle drugs.

Normal goods (eg underwear, clothes, toys, kites, faucets) current prices are SGD 6 for the first kg, subsequent 0.5kg 2.

For the super sensitive goods, gotta go by “sensitive sea”, eg neodymium magnets. Cheaper though, but you gotta wait for 2 weeks. And some things like processed foods are limited to 5kg, but that’s due to local regulations and limits, not the carriers or overseas (china) customs.

I believe Shunfeng Express can do it too, but the cost is gonna be eye-popping. Still, probably a tad lower than DHL. Big Smile

Buy a new light + 6 batts, and ask for a discount? Big Smile

Newlumen
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If I were a FF boss, I will give a customer 50% off the light and free 3 18650.

BlueSwordM
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Nah. Just offer to pay shipping for 3×18650s for the customer. That is probably going to be expensive for them to ship directly, so that is a good punishment already.

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

klrman
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Had to try it out so I broke a four pack of 30Qs into three but for some reason I can't get the battery cage with the cells inserted back into the battery tube?  Is there some kind of trick to this?  No matter how I try, the batteries slightly protrude width wise and there is no play to slide the cage back into the tube.

 

I just tried my 30Qs from Banggood and Illumn.  There is no way this is going in the rot66 battery tube, it's that tight.  I tried to force it a little and now the top side of on of the 30Qs has cut through the wrapping.  This would probably explain why they were shipped without batteries on mine.

 

Bob_McBob
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It was upside down inside mine when it arrived.

2100
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klrman wrote:

Had to try it out so I broke a four pack of 30Qs into three but for some reason I can’t get the battery cage with the cells inserted back into the battery tube?  Is there some kind of trick to this?  No matter how I try, the batteries slightly protrude width wise and there is no play to slide the cage back into the tube.

Hmm….this “issue” has also been reported in one of the Taobao user reviews i have read. Anyone?

ROT66初版差強人意,以CP值來說算是不錯的。*電池倉裝上電池和筒身太密合* ,按鍵燈斜了150度,九顆燈珠有一顆亮度明顯暗於其他顆….期待下一版會更好。

>>The battery compartment when loaded with batteries is too tight with the flashlight tube barrel

klrman
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The way I see it, someone at FF sent this light to me knowing the battery tube tolerance is faulty.  Too much of a coincidence that they forget the batteries and that the batteries won't even fit.  I can't figure out if it is the cage or the actual tube that is the problem, but I'm thinking maybe the cage is not allowing the batteries to come close enough together to fit in the tube.

JasonWW
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klrman wrote:

The way I see it, someone at FF sent this light to me knowing the battery tube tolerance is faulty.  Too much of a coincidence that they forget the batteries and that the batteries won’t even fit.  I can’t figure out if it is the cage or the actual tube that is the problem, but I’m thinking maybe the cage is not allowing the batteries to come close enough together to fit in the tube.


Try sliding the batteries in without the cage.

On the plus side, maybe FF can send a replacement battery tube with batteries inside. They just need to toss some aluminum caps on both ends and it will be sealed really well for shipping.

Texas Ace Lumen Tube calibrated with Maukka lights

Click this to go to signature links.

klrman
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JasonWW wrote:
Try sliding the batteries in without the cage.

 

Sorry, I missed that.  No problem, slides in smoothly without the cage.  I thought about loosening the cage screws, but then that really isn't a good idea either.

 

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There are 5 screws total.. maybe you can adjust by loosing it little bit.. . give it a try…

klrman
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I thought about that, but having some screws loose doesn't seem like it would be good to do.

 

Ok, maybe not a bad idea after all.  I put the cage under a strong light and I can see some of the cage tubes warping inwards, which would be enough to not all the batteries to sit tight with each other. Going to unscrew and rotate them to see if I can get a tighter fit.

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It is hard to explain.. hold the right side of the carrier and hold the left side of the carrier at the same time.. both sides must able to move or twist..

Newlumen
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I observed 2 black pole should be tight and one black pole should loose freely..

You can adjust it using your hand.. can you try that method?

05_B15529-_A71_A-4_E38-_B879-92718_A58611_E

JasonWW
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klrman wrote:

JasonWW wrote:
Try sliding the batteries in without the cage.

 


Sorry, I missed that.  No problem, slides in smoothly without the cage.  I thought about loosening the cage screws, but then that really isn’t a good idea either.


 


Okay, then that means the cage is not letting the batteries touch each other. The battery tube seems to be okay. It’s something with the carrier.

Try shining a light to see if you can get the batteries all touching side by side. I think you are on the right track.

Texas Ace Lumen Tube calibrated with Maukka lights

Click this to go to signature links.

klrman
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Newlumen wrote:
I observed 2 black pole should be tight and one black pole should loose freely.. You can adjust it using your hand.. can you try that method? 05_B15529-_A71_A-4_E38-_B879-92718_A58611_E

 

It works!!!!!!!!!  Thanks, that did the trick.  Having one pole looser made all the difference, thanks Newlumen  

 

Wow is it ever bright.  This little light is  blinding with the xpl hi.

klrman
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JasonWW wrote:
klrman wrote:

JasonWW wrote:
Try sliding the batteries in without the cage.

 

Sorry, I missed that.  No problem, slides in smoothly without the cage.  I thought about loosening the cage screws, but then that really isn't a good idea either.

 

Okay, then that means the cage is not letting the batteries touch each other. The battery tube seems to be okay. It's something with the carrier. Try shining a light to see if you can get the batteries all touching side by side. I think you are on the right track.

 

Yes, thanks, it finally worked out in the end.  As Newlumen said, one of the three poles needs to rotate freely in order to let the batteries come tight together.  They should really make sure these things are done at the factory before letting them out the door.  Oh well, learned something new and valuable today so it's a good thing.

Newlumen
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klrman wrote:

Newlumen wrote:
I observed 2 black pole should be tight and one black pole should loose freely.. You can adjust it using your hand.. can you try that method? 05_B15529-_A71_A-4_E38-_B879-92718_A58611_E

 


It works!!!!!!!!!  Thanks, that did the trick.  Having one pole looser made all the difference, thanks Newlumen  


 


Wow is it ever bright.  This little light is  blinding with the xpl hi.

Nice. Yay. Smile

2100
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Glad that issue was sorted out……just a bit of adjustment to the carrier, shdn’t be too difficult for flashaholics. Smile

This light is in my to-buy list, even though i generally don’t like pocket rockets with the small mass coz of the year round hot weather here. I learnt it the hard way last time.

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