What will beat the Fenix RC40?

Well you loose some flood if everything else remains the same. However as you can see from the pics you still gain flood when you increase the power to the emitters. So with a mod like Tom’s or mine you gain both flood and throw over stock and by de-doming you get a much more neutral tint. It goes from cool white to neutral. So de-doming costs you a few lumens but you gain by doubling the throw and a nicer tint.

From what I’ve seen when you dedome a light, you still retain the flood coverage. However it is a weaker & less usable flood. The reflector is generally what controls the flood area. The die itself controls the intensity of distribution in each area - flood to spot.
So basically when dedomed, you just move more of the lux into the spot area by remove some lux from the flood area.

Wait - this is all brand new stuff and experimental to some degree. the last Shocker I completed was the de-domed one and I could get 5.7A measured at the switch, but I'm not sure I got that high on the one with domes. So, it's possible with domes to get even higher lumens than 4,400 (I'm thinking), but understand this is all for a couple of minutes only. The 20R's are 2000 mAh so they drain fast at 5.7 amps, and will drop the amps pretty quickly too. Can't compare to the Fenix RC40 with a well regulated driver, 6 cells at 2600 mAh, and probably can maintain high output for pretty long in that 1.5 hours of runtime they quote on turbo.

Where the RC40 falls short of where it could be is 2600 mAh cells -- why not 3400's? and XML U2's and not XM-L2 U2's.

Very interesting thread.

I don’t like big fat flashlights but I will have to order this one and modd it with XP-G2 driven at 3A so I can use that for extended periods of time. And if your XM-L2 lux measurements are correct BTU Shocker should go well over 400KCD with them.

So I hope they will offer BTU Shocker host on CQG web shop?

edited because I answered my own question. My calculation were wrong.

Very true. The high amperage direct-drive setup with low mah Samsung cells does have its practical limitations. That combo does make a beastly light though. It’s pretty much along the lines of the 6.5A TN31’s and K40’s. Very fun to play with but not too practical.
Of course one doesn’t have to go with the Samsung & IOS driver to make a BTU very impressive. A BTU with XM-L2’s on Noctigons or Sinkpads on good thermal paste, running on Keeppower 3400mah cells will surpass the RC40 with roughly 10% in lumens and 30% in throw. The BTU will lack some runtime though with its total of 10,200mah capacity vs the RC40’s 15,600mah’s.
I personally don’t see carrying either of these big heavy lights around for over an hour, so the runtime isn’t an issue for me.
I can’t knock the RC40 really. It is a superior light bone stock vs a BTU. No question. It is appx 3 times the price though. And a bone stock BTU will pretty much match the RC40 in performance. A little behind in lumens and a little ahead in throw - basically a tie.

I’m very intrigued to see what this j19 does with feilong cells, I saw a test thread on the cells on cpf that seemed to suggest they still provide over 5000mah at 13a draw, couple that to the considerable reflector that seems similar to a btu shocker and it should provide some answers to the runtime issue if nothing else.

I’m going to have to grab a heat sink or two and make a test bed up, see what these’ll give single cell, then we need a single 32650 light with a good 70mm+ reflector and ar lense.

I hope ric, hank and simon are reading this and putting the feelers out.

It should be interesting and I can’t wait to see what the results will be on those cells. Runtime is pretty good with king kongs as well.

That would make an awesome setup for a thrower.

I see the J-19 is still sitting in Chicago. They must think that I put something nasty in the package. Better check it with a geiger counter when it shows up, they probably x-rayed it 50 times already. I do wonder what the holdup is though. I can’t remember any of the packages I have shipped taking that long to clear customs.

I really like the way J-19 looks and its form over shocker, I hope you guys do figure a good driver to soup it up with MT-G2s! :slight_smile: Dedomed XML2 looks great too, can you measure it yet?

You’re too modest, Tom. I am now seriously lamenting missing the recent $87 Ali promotion deal on the BTU Shocker (Xm-L’s, only, but you’d need to salvage some serious copper to approach Tom’s feat). If you were so inclined I think you’d find it hard to meet demand for your modded Super Shocker. I am now in search for such a light, after a strange encounter last night.

I was walking my dog last night on leash, towards a nearby park, when I heard a metallic rattling noise. As I approached a particular house, I realized that the A-hole that lived there had opened the gate to his fenced-in yard to let his exaggeratedly short-legged, fat, big-headed fake Pitbull attack me and my sweet, rescued (but genuine and gentle) Pitbull.

Fortunately, I had my brightest light, an XinTd C8 V4, in hand to shine in his dogs eyes while yelling “get back” at the same time, all while keeping my dog away so he wouldn’t grab ahold of the dog trying to protect me. Fortunately, I was successful in halting the dog’s attack, but when I shined my light across the young man’s yard, I spotted him standing at the far corner of his house just silently watching the event.

When my light hit him and I kept it there while processing what kind of idiot would let their dog loose to attack someone on a public road, he then shone his (seemingly) brighter flashlight (with a big head, but seemed more a flooder) toward me and said, I got a flashlight, too. It’s at that moment that I wished for a brighter light, so that when I informed him that he was legally responsible in FL for keeping his dog contained, and that if his dog did any damage on a public road, he would be fully liable, it would have had the explanation mark of at least double his lumens driving the point into his alcohol-stupored brain.

When and if he had then still responded (as he ignorantly did) that I shouldn’t be walking my dog after dark (his speech clearly that of a drunk person), causing his dog to bark, I would have then shone my SS Shocker onto the public road (that I was on the opposite side of) and told him that my walking on a public road was both lawful & irrelevant to his legal obligations, which would be heavy if his dog caused any harm on public property.

Apparently, he can’t bear his dog’s incessant barking each time someone passes, so in his drunken state, he blamed an innocent passerby (me), instead. Partly because of my doubts that he’s intelligent enough to explore other alternatives, such as training, shock collar, larynx surgery, keeping the dog inside, etc, I want a light bright enough to see if the gate is open well in advance, and partly because I just enjoy lumens, I am now on a quest to come up with a blindingly super-bright, super thrower light for this particular part of my daily walks.

Take some pepper spray and show the dog why not to claim the street as its “territory” next time.

they probably have my address on a watch list lol, I just hope England’s customs are reasonable with me at this end…. :bigsmile:

Not really accurately enough to want to post it. I know it walks all over a stock Shocker and has way more runtime with the 26650’s. I also took out the IO driver and put the DRY driver back in I just re-wired the DRY with heavy wire. I like it much better and they are both direct drive on high anyway. So the J-19 is set up and rocking right now. I also like the four modes on the DRY better than the three modes on the IO driver. I’m giving up for now on the MT-G2 triple. I spent too much on fried drivers already. I have a double MT-G2 and it’s great so for now it will have to do.

It’s marked as “Gift” for what that’s worth. I did insure it though. I have never had to bribe anyone in England’s customs yet. Although I shipped a high end Les Paul to Venezuela once and paid a bribe to a customs official there. They have a $600 a year limit on buying from out of country via internet. Good thing they are all corrupt as hell.

Great idea, B42! Funny how guns and knives are the first things to come to mind here in the U.S. for self-defense. It’s fortunate for both me and the idiot that his dog was not as committed as his owner obviously thought he was to take on my dog.

I had a locking folder in my pocket that could have come out if needed. The idea of spraying mace or pepper spray is much better, especially under those circumstances, since it would repel the dog without permanent injury or death to the innocent animal (look at the owner, instead). It would also avoid giving the idiot hiding in the dark with who-knows-what kind of weaponry as much a reason to escalate the situation.

Anyone have a recommendation on where to buy some?

Exactly. I’m also from the US btw, and though I could carry one even concealed, I don’t tend to carry and would always choose to try to solve the situation with the least possible force. Its a dog, pepper spray and a long stick should be fine, and carrying a knife in the case of a satanspawn dog from hell bent on ripping your arm off and killing you should work if not :slight_smile:

You can get pepperspray all over online too, Amazon, ebay, sportsmansguide, etc. Not sure what the “best” site is. I carry some in my night forest hikes, I even prefer it over a gun then, but I’m not 100% it would help me with a bear…but black bears are generally just as afraid of you as you are of them and with two dogs and a knife, being a big guy I think I still have a pretty good chance. :wink: I’m more afraid of not being able to keep my dogs away from the bear.

that should do it, I never like to ask incase it gets the sender in trouble but hopefully it’ll slide through without issue. It may also be on its way, I have noticed usp tracking stops when it enters the sort facility and does not update till its signed for.

I have a package to pick up tomorrow which could be something local or could be an international package, we’ll see in the morning, the feilong’s have shipped on Saturday (fasttech held the package up waiting for a c8, c8’s still not shipped unfortunately :~ ) so I should have them in the next few weeks along with some molicell 26700’s from Elektrolumens, I don’t think this light’ll be under fed lol

[quote=B42]

Thanks, again, B42, for the great advice. My walks had been peaceful and uneventful for so long, probably because I previously took both of my rescued pitbulls with me on walks, but my daughter recently took over walking duties with one of them. (Fortunately she always carries OC spray).

It’s blows my mind to see ignorant, irresponsible people choosing to neither keep their dogs contained nor on leash in 2013, while the general public (with substantial assistance from the media) blame the innocent, neglected, and often abused dogs.

I’ve got some Fox 6% OC spray on the way. Combined with a very sturdy ‘walking/deterrant’ stick and a belt-sheathed fixed-blade (as a last option), I’m now much more prepared for such situations.

I have a Vinh modded TK75, and it's an absolute beast. I don't know if it will beat the RC40 as I don't have one, but I think it would be difficult for it not to win out.

Two reasons... RC40 is using older emitters, and crappier batteries. I also expect the LED's are not driven anywhere near as hard.

Fenix only recently released the xml2 version of the TK75, and it's nearly a match to the RC40 stock in terms of throw. 126000kcd for the RC40 vs 195000 for the TK75.

I know my dedomed TK75 would also spank the RC40 in throw, but so will the K40 and the TN31 as already was mentioned. The dedomed tk75 has a nicer hotspot vs the tn31 and k40 though.

In terms of raw "wow" power, nothing I own beats the FF4. In terms of practical limitations with that light, the only one that really bugs me is that you don't have a true low mode.

You also can't really run it for all that long. You get about half hour of run time start to finish, if you go to high mode as soon as possible. After that you will need to allow the light to also cool down as it gets HOT. So if you're going camping, definitely not a light to take, since you'll need spare batteries.

On 20W "low" mode it would run for a while longer and is definitely in the 2000 lumen range... but that's way too much throwy light for up close stuff. For me, nothing as of yet beats the modded TK75 overall. My only wish would be to have the same performance in a smaller package.

This will :smiley:

And the poor bastard has no hope in readily beating it either :wink: