13,333 lumen Nichia 319A "Mega M6" by Texas_Ace, I had to use over 6 feet of wire to reduce the power!

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Texas_Ace
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13,333 lumen Nichia 319A "Mega M6" by Texas_Ace, I had to use over 6 feet of wire to reduce the power!

So I have been out of the modding game recently but I decided to use up some spare parts and built my version of the MTN “Mega M6”. No, it doesn’t make exactly 13,333 lumens, just a number I got at one point, it is between 13k and 14k depending on the batteries and charge level.

Cliff notes version:
Had spare parts, decided to build Mega M6
Decided to run it in a 4s3p setup instead of 12p
realized doing this would make it FAR too powerful to be useful at 280w+
added over 6 feet of wire to reduce the power to a more reasonable ~200w (~150w with the GA cells I use)
converted tailcap to 4S and used a TA driver that made the 4S conversion rather simple
got a completed light that outputs 13-14k lumens of beautiful Nichia 319A 5000k 80cri white goodness

Long detailed version:

A BLF member was nice enough to make me an aluminum slug spacer to raise the tripe optics up to the lens and the rest of the parts except for the mcpcb’s I had laying around (actually got enough to build 2 more lol).

So this is an M6, I had it modded with XP-L HI’s and while it was good and made 4k lumens, I just never used it compared to my other SRK’s.

The mod was pretty simple really. I put the spacer in, drilled a hole for the wires and then reflowed the mcpcb’s. I then wired up the LED’s with 18 AWG wire in a 4s3p config in order to vastly reduce resistance losses.

I put the head back together and started playing with it on the bench power supply. I quickly realized that this thing was going to be a monster if I was not careful. Wiring it up in 4S means that it can achieve much higher output then if it was wired in 1S (Richard said he gets around 40-50A out of his). I maxed out my power supply at 15A (equivalent to 60A at 1S) this is already over 200W of power and the voltage was only a bit over 13V!

Some math showed me that it with high drain cells I could easily see 20A+ (80A+ at 1S voltage) if I didn’t do something. Seeing as 280W+ would be far far too much I decided to do something. I added over 6 feet of 20awg wire as a crude resistor to drop the power!

This increased the voltage at 15A to around 15V which was much more reasonable and means that the 30Q’s should also give around 15A by the math (turned out this was correct).

So for those that have asked if running a SRK in 4S will net you more power then in 1S. The answer is easily yes.

I then put together a TA46-Multicell (the one that splits the voltage instead of using an LDO) and put the head together. Only to then have to rip it apart again as I tried to track down an issue with the driver. Never did figure it out, spent an hour on it and then reflowed everything and it suddenly worked. So some joint must have been bad.

After that was sorted I then had the hardest part of the whole build, lining up the driver with the battery tube so that the springs were centered in the bores. Turns out if you do not tighten down the centering ring real tight after each adjustment, it will just change every time.

Last came the tailcap mods to convert it to 4S. I used the multi-cell tailcap for the Q8 and set it up for 4S. I used some 1/8” brass rod I got for $3 from lowes to create locator pins in 2 of the holes. I simply used a touch to heat them up and soldered them to the screw holes in the PCB.

I then drilled a hole in the tailcap, sadly the M6 doesn’t have a divot in the tailcap to center the drill bit on but I got it almost exact by using the tailcap as a guide through the battery tube.

I inserted a screw into the tailcap with a small o-ring for water proofing and then used a nut to clamp it in place.

The tailcap pcb came next, the center hole went over the screw and then another nut over that. Lastly I added yet another nut on top to tighten against the last nut so that it would not loosen when taken the tailcap off.

Thats it, the 4S conversion was really quite simple and the light works great. I think I will upgrade to narsilM later as the LVP is kicking in early on the 1.2 I am using.

The results are quite good. Around 13-14k lumens with 30Q’s @ ~14-15A although I run it on GA’s where it is closer to 10A and around 11k lumens.

It has some great 319A 5000k 80CRI LED’s that give a nice wall of pure white light. The best flooder I have yet.

It is funny though, it is not by brightest light and since it is so floody it doesn’t even seem as bright as it is. Still very usable though and I think it will become my standard around the house light.

Now for some pictures of the completed light:







Here it is hanging out with a few of my other SRK’s:

Lights in order:
Mega M6 – 13.5k lumens
8x XM-L2 U2 3D – 10k lumens
8x XHP50 J4 1A – 17k lumens
4x XP-L HI V2 3B – 4500 lumens





These are all great lights. The XM-L2 is very close to this mega M6 except that it doesn’t have DTP due to the stock mcpcb and it is in 1s. The output quickly drops down to ~8000-8500 lumens due to this. The tint is good but not quite as good as the M6. It is a trowier beam though as would be expected from the larger reflectors.

The xhp50 is a lumen monster, very bright but once again lumens drop off due to lack of DTP, they settle around 12-14k IIRC. Ugly 1A tint, only keep it around because it is my brightest light right now.

The 4X version is very nice indeed, very close to what the Q8 should be like except with XP-L HI’s. Good combo of throw and flood and still had good output as well. I can’t wait to take it to the next level with the Q8 and XHP35’s, should be 8k+ lumens and great throw.

Here is a first for me, some really bad beamshots in the same order as above:





Well, this is how I spent my weekend.

The Second Amendment is in place in case the politicians ignore the others.

Government is the great fiction, through which everybody endeavors to live at the expense of everybody else. -- Frederic Bastiat , French economist(1801-1850)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT

How I made a True integrating PVC sphere with no math involved

Edited by: Texas_Ace on 06/19/2017 - 11:21
Henk4U2
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Holy shmoly, that’s some serious equipment.

DavidEF
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Great mod! Thanks for sharing. Now, I want to see the 6ft of wire. You didn’t take a picture of the 6ft of wire? Shocked

Reason is not automatic. Those who deny it cannot be conquered by it. Do not count on them. Leave them alone.
-Ayn Rand

Texas_Ace
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DavidEF wrote:
Great mod! Thanks for sharing. Now, I want to see the 6ft of wire. You didn’t take a picture of the 6ft of wire? Shocked

lol, it is all coiled up inside the driver cavity, I didn’t have 6 arms to hold it in place and take a picture at the same time. If I decided to reflash the driver I will snap a pic then.

The Second Amendment is in place in case the politicians ignore the others.

Government is the great fiction, through which everybody endeavors to live at the expense of everybody else. -- Frederic Bastiat , French economist(1801-1850)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT

How I made a True integrating PVC sphere with no math involved

EasyB
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Yep, 4s with super low Vf LEDs… Looks like your eyes were bigger than your heatsink. Big Smile

Nice light.

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Nice way to spend the weekend Thumbs Up

Texas_Ace
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EasyB wrote:
Yep, 4s with super low Vf LEDs… Looks like your eyes were bigger than your heatsink. Big Smile

Nice light.

This light is begging for a buck driver, it could run for quite some time in full regulation. The Texas buck would be perfect for it. I might end up building one of those someday and using it. 10A seems to be about the sweetspot, past that it is quickly diminishing returns.

This does give me an idea what a quad xhp50/70 Q8 would do though and it is great.

Another interesting point is that the M6 is much heavier then even my modded SRK’s with solid shelves. It takes a bit longer to heat up from cold due to the higher thermal mass but it gets significantly hotter and stays hotter for much longer.

I was playing with 2 of them at similar power levels and they both got real hot so I set them aside to cool. Came back later and the SRK was cool but the M6 was still surprisingly warm. I never really realized just how effective even those tiny fins on the SRK are.

The Second Amendment is in place in case the politicians ignore the others.

Government is the great fiction, through which everybody endeavors to live at the expense of everybody else. -- Frederic Bastiat , French economist(1801-1850)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT

How I made a True integrating PVC sphere with no math involved

The Miller
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Very nice!
How much feet of wire could you have saved by not bypassing the springs?

Texas_Ace
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The Miller wrote:
Very nice! How much feet of wire could you have saved by not bypassing the springs?

The springs would have reduced the power enough by themselves most likely but they also would have melted in a few seconds. Anything over ~5A per spring and I have not had the best luck with longevity with un-bypassed springs.

I bypass anything over that just to keep them from melting later.

The Second Amendment is in place in case the politicians ignore the others.

Government is the great fiction, through which everybody endeavors to live at the expense of everybody else. -- Frederic Bastiat , French economist(1801-1850)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT

How I made a True integrating PVC sphere with no math involved

MRsDNF
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Whats there to say but wow. Smile

My current and or voltage measurements are only relevent to anything that I measure.

Budget light hobby proudly sponsored by my Mastercard and unknowingly paid for by a hard working wife. 

djozz said "it came with chinese lettering that is chinese to me".

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.

 

lostheplot
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Awesome work

kennybobby
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What is the length and diameter of your creation?

Texas_Ace
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Of the M6 light itself? It is just a normal M6 on the outside. Quick measurements put it at 145mm tall by 60mm wide at the head.

Although it is one heavy beast, a bit over 1.5lb total as it sits right now.

The Second Amendment is in place in case the politicians ignore the others.

Government is the great fiction, through which everybody endeavors to live at the expense of everybody else. -- Frederic Bastiat , French economist(1801-1850)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT

How I made a True integrating PVC sphere with no math involved

justanotherguy
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How was the OD on the slug?

Texas_Ace
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justanotherguy wrote:
How was the OD on the slug?

The slug was fantastic and worked perfectly, you did a great job! I had to sand off about 2mm as planned but it was worth it since I didn’t know exactly what the compressed optic height would be.

The Second Amendment is in place in case the politicians ignore the others.

Government is the great fiction, through which everybody endeavors to live at the expense of everybody else. -- Frederic Bastiat , French economist(1801-1850)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT

How I made a True integrating PVC sphere with no math involved