v5 Triple Scout / E Series Heads

[lion504]

Here's a post touting benefits of 7075. https://www.candlepowerforums.com/v...-Small-Size)&p=4942536&viewfull=1#post4942536

i also recall a post Dan made showing a 7075 BOSS that lived through the road rash of a motorcycle crash. I was pretty impressed. Can't find that link though.

I should clarify that I don't want to suggest that 2024 is never a good choice or that OR is somehow wrong for offering it. Just that I would like to pair a 7075 head with a stronger body material in MY light. Why? Honestly, because of my OCD about dings. I'd willing to pay a little more up front to avoid as many as possible.

EDIT: Dan - any chance of a E35 host in 7075?

 

[Pi_is_blue]

The Lumens Factory offerings would be a good match - the E series bodies are 7075 aluminum and come in black. Here's a BOSS head resting on their E series body (won't thread on due to the different diameters):

They have tailcap offerings with McClicky switches as well. Now that I mention it, I might need to build such a light myself...

 

[lion504]

Thanks! That looks like a great option. Is that clip removable?

 

[Pi_is_blue]

The clip on mine doesn't want to budge, but you might ask over on the main thread: https://www.candlepowerforums.com/vb/showthread.php?443266-Lumens-Factory-E-series-bodies/page17. Lumens Factory makes a bunch of other styles of clips for E series lights.

 

[Random Dan]

No, I'm not referring to metallurgy reactivity. Rather my sensibilities regarding quality and durability. 7075 is a much stronger alloy, and OR has advertised its benefits in resisting deformation. I don't know very much about 2024 but I'm assuming it's MUCH softer. Kind of like pairing your NIJ Level IV plates with a bike helmet.

Just from a quick google search I suspect that might be a bad assumption: https://www.makeitfrom.com/compare/.../7075-AlZn5.5MgCu-3.4365-2L95-A97075-Aluminum

I'm no metallurgist though and it would be good to hear OR's opinion on why they chose 2024 and the trade-offs vs 7075.

 

[lion504]

I think you're right and that I was wrong. And I'm happy to hear it. I think OR products are top notch and wanted to like those E35 bodies. Although slightly embarrassed you had to do research I could have done. Anyways, thanks very much. Yep, I do hope Dan jumps in and educates us as to the reasons behind the various alloys.

 

[lion504]

Here's what I just found: [FONT=&quot]In terms of applications, 7075 is suited to applications that require high stress/strain resistance. Whereas, 2024 is suited to applications where high cyclic fatigue resistance is required.

not sure what that means, but I'm satisfied that my earlier post was way off. My apologies. [/FONT]

 

[ElectronGuru]

Sorry for the confusion everyone. No metal is best at everything so different priorities can lead to different decisions. Here's a quick breakdown on aluminum:

6061 - best corrosion resistance + worst strength + good at finishes

2024 - good corrosion resistance + good strength + good at finishes

7075 - best strength + worst corrosion resistance + bad with finishes like natural ha

So 7 series is a specialist metal, giving up certain benefits to get a single other benefit, strength. These drawbacks are more easily managed when we control all the other parts (BOSS). These drawbacks are more difficult to manage when a part like the e35 body has to work with hundreds of other parts including different metals and manufacturers. Including natural parts our parts need to match. Our E head has other interface materials (brass/delrin), our E bodies do not.

So 2 series aluminum is very tough, especially with HA. Just not as tough as 7 series.

Note on 4500k LEDs: this is a short term bin so this batch of heads is your best chance at getting this bin

 

[lion504]

Dan - thanks for clarifying, and apologies again for muddying the waters.

 

[JPA261]

So I have this model,
"Triple v5 E/Scout Head – 219C High CRI 4000K (24w) + Red"
Can I only use up to level 24w on both 1-18350 or 1-18650? Or can I go up to level 28?

 

[peter yetman]

You can go to Level 31 on a single Li-Ion which is 23W 74%. With two you can get 30W 100% Level Afterburning
If you go here......
http://lux-rc.com/content/NXS/NXS_R1_setup
You can play with the levels.
P

 

[ElectronGuru]

Sorry for confusion. v5 includes an output governor (like a speed governor on cars) with the following limits:

one cell high
17w - XPL (limit of the board)
17w - 219C (limit of the board)
17w - 219B (limit of the board)


two cell high
30w - XPL
24w - 219C (protects the LED from damage)
21w - 219B (protects the LED from damage)


Values set above these limits are ignored and operate at the set limit. So a 219c board will do 17w on one cell and 24w on two.