Sky Lumen Nguyen Flashlight

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SKY69
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I am very interested

vinhnguyen54
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twisted raven wrote:
With quad Osram CSLPM1.TGs I’m guessing 3 minutes or so considering the amount of aluminum.

That would be my guess too

vinhnguyen54
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SKY69 wrote:
I am very interested

Smile Cheers!

vinhnguyen54
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Crap shop just made a correction. Testing sample Proto V3 is 6065 not 2011. Even softer! Yikes!!!

SKV89
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vinhnguyen54 wrote:
BurningPlayd0h wrote:
vinhnguyen54 wrote:
BurningPlayd0h wrote:
Yikes guys, he means 14 options for emitters, not 14x installed in the light.

No. I mean 14 (or 12) installed in the light. Light engine option wise there can be like +50

What is the advantage of that many emitters in a host this small?

Also a good final test would be a drop/throw test I think, impact resistance would go a long way to showing durability too!

The more LEDs you have the better the efficiency at lower levels.
Take the X80GT for example with its 18 XHP50.2. This light can run 4000L level SUPER LONG heat wise vs a light of similar mass running a single XHP50.2 pushed to 4000L.
More LEDS = Greater turbo lumen. Always exciting to push boundaries.
More LEDS = more enjoyment while the LED is ON or OFF Wink
This specific light engine will also be especially useful for photography, videography, diving, diffuse lantern, ceiling bounce, woods navigation, attics, real estate illumination…

Yes impact tests is very important and it’s test number 7. Still have 5 and 6 to do today though. Smile

I love the X80GTvn I received from Vinh two weeks ago. I measured 28.9k lumens in the TA lumen tube but considering how lumen tubes measure flood lights lower than throw lights, due to some of the spill not being captured, and this light is like a mule, that translates to about 32k lumens or more. This is good boost considering Acebeam lumen ratings are usually inflated by a good amount despite their throw ratings are conservative. I am also impressed how this thing can run pretty much indefinitely on the 4000 lumen mode. It is MUCH smaller and lighter than the MT03 that uses the XHP70.2 and a good amount smaller and lighter than the MF01S but runs much more efficiently due to the number of emitters. It makes it extremely practical for indoor use and for indoor photography. Great practical worklight that I use for my inspections. However, X80GTvn is still a bit too big because I need both hands to stabilize my huge phone for picture taking while holding the light so a single cell 21700 multi-cell mule would be ideal for my work use.

vinhnguyen54
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SKV89 and SKY69 geeeee

Ph nice review. X80GTvn and D18vn are the best for me.

BurningPlayd0h
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Yeah my only concern with the 12-ish emitter setup would be heat. Definitely more efficient at a set output, but if the driver has a direct-drive mode that could get hairy with how much current the new high-drain 21700s can deliver.

I’m not the target audience for a mule in general though so I’ll let someone else figure that out. Big Smile

blueb8llz
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Your torture tests video are exciting and fun to watch. Looking forward to the 9mm and the 20g bird shot test…? Juuust kidding lol

vinhnguyen54
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blueb8llz wrote:
Your torture tests video are exciting and fun to watch. Looking forward to the 9mm and the 20g bird shot test…? Juuust kidding lol

Now I really want to shoot the production 7075. Not sure if I can afford to but friend has all calibers up to S&W500. He said 9mm would be a breeze and he knows his metal since he is the one at the shop.

SKV89
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vinhnguyen54 wrote:
SKV89 and SKY69 geeeee

Ph nice review. X80GTvn and D18vn are the best for me.

Even I’ve confused SKY69 for myself. Several times I saw his posts and was shocked I ever posted that only to find shortly after it wasn’t my post. Facepalm

vinhnguyen54
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SLN Serial 000 Proto V3
Machined engraving help preserved the marks that laser engraving otherwise wouldn’t

View post on imgur.com
vinhnguyen54
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I just perform the heat test and the results were extremely surprising. While video is uploading give me a guess on the following values:

Ambient temperature 67F
Light engine Quad White2 + VN4 with thermal protection disabled.
Manker 4800mAh 21700 tested cell
2500L at 30s

Time in Min until “too hot to hold”:
Time in Min until peak temp reached:
Can circuitry handle heat nonstop?
Max start up lumen:
Test ending lumen:

Free Tange V2.1 in your choice of color for top 2 closest guess.

BlueSwordM
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That’s one nice light Vinh.

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

vinhnguyen54
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Originally Posted by LarryB View Post

“Wow, you really are trying hard! Doing a burn-out over it parallel was bad enough, and even though 6061 is soft, the hard ano was enough to protect it, and you didn’t scratch the ano! Perpendicular was asking too much for the 6061, it’s just too soft. 7075 would have had problems as well, but the scratches would have been much more minor, it’s MUCH harder than 6061. Other than some of the other really expensive lights made by small makers like us the lights are 6061 or sometimes 2011. The main advantage of 6061 is corrosion resistance, which is why it’s used in aircraft, but it’s soft and lower in strength than either 2011 or 7075. 7075 is getting up close to steel in its characteristics, but is VERY expensive, which is why it’s not used in many if any high production flashlights. As long as the flashlight is anodized and/or alodyned, corrosion resistance isn’t an issue.

Since you seem bent on destroying it, you should really keep going after you hit it with your high powered pellet rifle. I’d go for 22, then 308 and 9mm. Even though it’s 6061, it’s strong enough that I wouldn’t be surprised if it gets as far as the 9mm. Who knows, it might even handle the 9mm. I’m pretty confident that the 7075 will survive a 9mm if you don’t hold it fixed solidly, and who knows, it might even survive that. If you had had the 6061 versizn glued down to the asphalt strongly enough to keep it from detaching during Phuong’s burn-out, I doubt very much that the hard ano would have been fazed.”

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Our man has finally spoken! Mr. Larry is the man behind all of the computer design. On our road trip to Cali last summer Phuong and I met up with Mr. Larry and his wife for dinner to thank him for a huge purchase that he made to help me acquire my engagement ring for Phuong. Some of you might have remember that the sale close prematurely as be bought all of the lights from the sale to help me out. During dinner Larry proposed that its finally time I should build my first light. He volunteered his time and expertise with computer design and machining FREE OF CHARGE! We got SLN today 50% due to Mr. Larry! I likely contributed 10% to the left over 50%. Silly

A dear gratitude to the man that have done everything for us without ever asking for anything in return. The man that has put up with my countless request for changes in design and unreasonable requests. The man that made all my talk happened. Thank You!!!!

Vinh&Phuong

SKY69
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The main difference between my posts and SKV89 posts are SKV89 posts are from someone who knows what they are talking about where mine are from a technical moron who just loves nice flashlights.

vinhnguyen54
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Mr. Larry forgot his username so he cant log back in to post. Does anyone know how to recover username from an email?

contactcr
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top left “contact the admin” probably a good start Smile

vinhnguyen54
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SL Nguyen Flashlight Torture Test 5: Heat Test
https://www.youtube.com/watch?v=C7On0GX13Ew

Time in Min until “too hot to hold”: 7min
Time in Min until peak temp reached: 11in
Can circuitry handle heat nonstop? YES
Max start up lumen: 2650Lumen
Test ending lumen: 1890Lumen

vinhnguyen54
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SL Nguyen Torture Test 6: Chemical Resistance
https://www.youtube.com/watch?v=ETuHKCWQGkI

contactcr
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vinhnguyen54 wrote:
SL Nguyen Flashlight Torture Test 5: Heat Test
https://www.youtube.com/watch?v=C7On0GX13Ew

Time in Min until “too hot to hold”: 7min
Time in Min until peak temp reached: 11in
Can circuitry handle heat nonstop? YES
Max start up lumen: 2650Lumen
Test ending lumen: 1890Lumen

I assume it’s a FET driver but I would expect slightly higher max lumens so it makes me think maybe some resistance there.

Not a big deal, it might be worth it to allow the light to run cooler. However, I would run the turbo again for a few minutes and unscrew the light and see if those springs are getting hot to the touch. If they are they might sag your springs or kill your switch over time?

IDK something to consider.

vinhnguyen54
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All noted Smile

contactcr wrote:
vinhnguyen54 wrote:
SL Nguyen Flashlight Torture Test 5: Heat Test
https://www.youtube.com/watch?v=C7On0GX13Ew

Time in Min until “too hot to hold”: 7min
Time in Min until peak temp reached: 11in
Can circuitry handle heat nonstop? YES
Max start up lumen: 2650Lumen
Test ending lumen: 1890Lumen

I assume it’s a FET driver but I would expect slightly higher max lumens so it makes me think maybe some resistance there.

Not a big deal, it might be worth it to allow the light to run cooler. However, I would run the turbo again for a few minutes and unscrew the light and see if those springs are getting hot to the touch. If they are they might sag your springs or kill your switch over time?

IDK something to consider.

BlueSwordM
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@vinh, are you using a mechanical switch, or an electronic tailswitch?

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

vinhnguyen54
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BlueSwordM wrote:
@vinh, are you using a mechanical switch, or an electronic tailswitch?

Mechanical

blueb8llz
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Why does your quad w2 d4svn produce 4600 lumens and this quad w2 only does 2650 lumens?

DBSAR
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Nice work Vinh! Definitely interested in this. Been following your website & Youtube channel for years. Thumbs Up

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

vinhnguyen54
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Likely low drain cell. I will try another unprotected.

vinhnguyen54
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DBSAR wrote:
Nice work Vinh! Definitely interested in this. Been following your website & Youtube channel for years. Thumbs Up

Thank you!

SKV89
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blueb8llz wrote:
Why does your quad w2 d4svn produce 4600 lumens and this quad w2 only does 2650 lumens?

Good observation. I would like to know the reason too. Thought it’s a FET driver.

Head Light
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Thanks Vinh-- I'm back alive! Again, nice work trying to destroy it. I will be surprised if a 9mm hit on the 7075 kills the light, as long as it isn't held fixed. If the light can absorb the hit by moving it should be able to survive it, but not without reasonable messing up of the finish, much like Phuong did with her burn-outs. It has the advantage of almost certainly deflecting one way or the other leaving energy in the bullet, and if you were to score an absolutely perfect hit on the peak of the radius you've hit it where it's strongest in terms of not deforming and should really send it for a ride, again, like the burn-outs did. Not exactly a practical test in terms of what might be a possible failure, but certainly impressive if it handles it. The 6061 the prototype is made of is very soft. If Phuong did the same thing to a 7075 version it would certainly scratch it up, but the big gouges you got in the 6061 would definitely not be there. As long as you don't mind messing up the finish a bit, feel free using it as a hammer.

vinhnguyen54
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Head Light wrote:

Thanks Vinh— I’m back alive! Again, nice work trying to destroy it. I will be surprised if a 9mm hit on the 7075 kills the light, as long as it isn’t held fixed. If the light can absorb the hit by moving it should be able to survive it, but not without reasonable messing up of the finish, much like Phuong did with her burn-outs. It has the advantage of almost certainly deflecting one way or the other leaving energy in the bullet, and if you were to score an absolutely perfect hit on the peak of the radius you’ve hit it where it’s strongest in terms of not deforming and should really send it for a ride, again, like the burn-outs did. Not exactly a practical test in terms of what might be a possible failure, but certainly impressive if it handles it. The 6061 the prototype is made of is very soft. If Phuong did the same thing to a 7075 version it would certainly scratch it up, but the big gouges you got in the 6061 would definitely not be there. As long as you don’t mind messing up the finish a bit, feel free using it as a hammer.

So nice to hear from you Larry!I know you are super busy so very nice for u to drop by and join us.

At this point I will have to sacrifice a serial production 7075 sample. My military friend already got a military vehicle set up for the next level Run Over video. I will also start small with PCP air rifle then .22lr and up. If the light survives 9mm I consider it a major success. We have plenty of more potent calibers but that’s too optimistic. Cheers!

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