Just keep in mind that at that temperature pure white in true sense of the word is not possible. You need to go to around 5500K for that but there are no real acceptable CRI for that on the market except XB-D 3C from IOS
You see purely white pictures of Nichia 219AT 4500k CRI92 Beamshots because the white balance in the camera is changeable. This LED is known for pinkish light and that is no reason for sending it back.
Yup you are right I think. My galaxy note 2’s camera sees it as pure white and doesn’t pick up any pink. Overall it’s still far better than the ugly green so it’s all good.
Just updated with images. I will get outdoor shots when it gets dark.
About 2 amps using a single 18650
If that is a buck driver, the output is a bit higher than the input. I wouldn't see Eagletac using linear drivers, but who knows.
Sportaclight.com says:
C3000 LED driver
Sportac P60 LED Dropin uses highly efficient synchronous buck current regulated circuit that controls the precious amount of current that goes through the LED
This results in constant brightness output regardless of LED variation, battery voltage, and temperature change. We utilize low RDS (on) high power external mosfets, rugged & shielded power inductor, low ESR tantalum capacitors, and low resistance 2 oz copper PCB for maximum efficiency. This also lower required input voltage to current regulate the LED at maximum output when the battery voltage is near the LED forward voltage (i.e. longer regulated runtime with single li-ion battery).
Whatever that means lol
I’ll measure again with the good meter later. This old one has no leads so I used some thin wires. Might be affecting the number.
The number will actually drop a bit if you know use thicker and shorter leads (which you should anyway) at the same identical cell voltage as you measured before. If the driver sees more voltage doesn't need to draw as much current, since I see we are talking about buck regulation and that is how it should be while the battery is got more than 50% capacity left and it's a good cell (not to enter in a lof of details but regarding how the Vin should be over the Vf of the LED, etc)
Yea the pink is normal and I wouldn’t go through a return. All of my 7 nichia have been slightly rosy. When in use and not in comparison to other lights, the rosy tint is unnoticeable.
these are very nice looking drop ins but it needs at a minimum a low (15-50 lumen) mode in addition to the regular high only mode.
Yea ur rite. All things considered, amazing output with high CRI in a HAIII L2P host for 50 bucks total. Totally worth it.
It is strange that they would use a copper MCPCB for the LED’s and then a brass body for the P60. Aluminum transfers heat much more efficiently.
Brass is easier to machine and solder to. Probably why they don’t use aluminum or copper.
And also the farther away you get from the LED's thermal pad the larger the surface area gets which makes theoretical differences in materials nearly irrelevant.
Some more infos (Amp draw, beamshots)
Just an update. The Nichia really grows on you. I’m not even bothered by the rosy tint (and it onlyseemed rosy in a blue room really)
The only issue is that it gives off too much heat. A low or medium mode should be a must.
The high CRI blows away the 4x XML2 SRK I have in terms of color rendering.
This L2P with this drop in is amazing for EDC and everyone is surprised by how nice the color is and how bright it is. Don’t look at the emittets since it leaves you seeing stars since the 3 emitters are so tightly packed. It is VERY intense and again it leaves you seeing afterimages if you glance at the business end !!
So yea great for EDC in my coat pocket and because it is –20 C outside I don’t mind that it gets warm!!
Thanks for posting this link, awesome beamshots especially the comparison shots, the difference the Nichia makes is amazing.
Unfortunately I couldn’t read anything except for the amperage draw specs.
(I’m sure there’s a way but I’m not sure how to make it translated)
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Stromaufnahme
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1x 18650 —— 2.75 A
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2x 16340 —— 1.5 A
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2x CR123A —— 2.5 A
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Are these available anywhere?
It appears Going Gear has them
https://budgetlightforum.com/t/-/23676?page=2#comment-524899
Also illuminationGear (I guess they initiated the idea in conjunction with eagletac) however they show “out of stock’ on the triples.
I wouldn’t say amazing, just pretty good. Nichia version produces less than 600 otf lumens. Like all Sportac modules doesn’t achieve full output on 1x18650 and is unregulated in this setup.