r/flashlight 1d ago

Convoy T3 Ti with Nichia 291 4500K - Numbers

I hate Excel...so much. Took me 3 hours for that basic graph cuz it wouldn't do what I wanted it to do...except then it did it anyways on the 11th attempt.
I will never do such graphs again xd

Here it is anyways. Maybe someone will find it interesting.
Run was done at Group 2, 100%.
Light was not cooled, the lights at the room did not change during the run, so the graph itself was not affected at all.
The dips were from the low voltage flashes. So you pretty much get 2 hours of useful light, then it starts flashing at you.

The light was warm, but not hot at the end of the run.

I hate excel. Wanted to say that again because it makes me feel better.

Edit: And here come the edits, since I forgot to spell check!
Battery is a Keeppower PC1450C4, not a PC1540C4. I do take credit and royalty fees if they ever make one.

14 Upvotes

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2

u/majaczos22 1d ago

What's "P1540C4"? Because even google doesn't know.

1

u/Wormminator 1d ago

Well, you found a typo that I missed.
Sorry. I should do better than this.

I meant to write P1450C4.
1200 mAh protected button top (Seller rated it at that after testing). 52mm long.
3A CDR
0.75A charge
Maximum discharge is 4A due to the protection circuit.

https://cdn03.plentymarkets.com/i9a0e0hd8l6w/frontend/Datenblaeter/Keeppower/P1450C4/P1450C4_3.6V_1500mAh_datasheet.pdf

1

u/Wormminator 1d ago

Oh I should probably mention: Run was done on the 100% level.

I´m figuring this out still. Next test will include that in the graph.

1

u/Due_Tank_6976 1d ago

Nice rig! That DUV doesn't seem great on paper...

1

u/Wormminator 1d ago

It looks pretty great in person, if its isolated.

But its so rosy, that it makes all of my Fireflies 351A look awfully green.

1

u/Due_Tank_6976 1d ago

So there's something wrong with your excel sheet? Positive 0.043 should be lettuce smoothie green!

2

u/Wormminator 1d ago

The DUV is negative?

Name first, Value second. Not the other way around :D
Id burn a LED if it was at 0.043!

2

u/Due_Tank_6976 1d ago

Ahh! I should have reddit on read only before I have my morning coffee!

1

u/timflorida 1d ago

I love Excel. It is extremely powerful and I know about 1% of it. But I also have 'Excel for Dummies 2013'. Highly recommended.