djozz wrote:

Here is the first of the E21A sm205 R9050 leds in a Lumintop Tool. The tint and colour reproduction is not far from the 2000K Stanley led that I tested before, of course the Nichia has just that bit more red in it

Ooooooh, I liiiiiiiiiiiiiiike.

I finally got around to testing the E21A’s clemence sent me, they look fantastic and tested pretty well too.

Not sure what I am going to put them in yet, got a few ideas.

http://budgetlightforum.com/node/59421

I found a single 3000k to be fantastic in a zoomie. In an ultrafirr uf10 to be more specific. It is about 2amp direct drive off a fresh imr 16350, just about its max spec

djozz wrote:

Here is the first of the E21A sm205 R9050 leds in a Lumintop Tool. The tint and colour reproduction is not far from the 2000K Stanley led that I tested before, of course the Nichia has just that bit more red in it !{width:50%}https://farm5.staticflickr.com/4714/38829700920_109c55ee22_o.jpg!

What 10mm MCPCB did you use for the E21?

doubleone44 wrote:

djozz wrote:

Here is the first of the E21A sm205 R9050 leds in a Lumintop Tool. The tint and colour reproduction is not far from the 2000K Stanley led that I tested before, of course the Nichia has just that bit more red in it !{width:50%}https://farm5.staticflickr.com/4714/38829700920_109c55ee22_o.jpg!

What 10mm MCPCB did you use for the E21?

In the WDYMT thread I posted a bit more about the Tool mod: http://budgetlightforum.com/comment/1288703#comment-1288703

Wow, a whole day without power of any kind?

If that happened worldwide….I shant even think of the consequences of such a thing…

djozz wrote:

djozz wrote:

clemence wrote:

djozz wrote:

And how is the tint? I have a few of the E21A 6500K R9080 leds but have not used them yet.

Jos, did the 2000K packet arrived? The last 6500K shipment was relatively fast.

- Clemence

No, it did not arrive yet, must be stuck somewhere. Usually packages show up again at some point, I’m waiting for that

And so it did a few days ago, thanks Clemence for checking the whereabouts of the package for me!

Here is the first of the E21A sm205 R9050 leds in a Lumintop Tool. The tint and colour reproduction is not far from the 2000K Stanley led that I tested before, of course the Nichia has just that bit more red in it
!{width:50%}https://farm5.staticflickr.com/4714/38829700920_109c55ee22_o.jpg!

Can you talk more about this LED? How similar is it to candle light?
I once had a light with a de-domed XP-G 3000K 90CRI and it was just terribly orange.
I have an old Novatac Wichita which has a special driver (like in the HDS lights) with very low modes. It seems like a good match for this LED. The lowest mode actually flickers a bit, so I would even have the candle part covered :D.

It obviously makes sense to put this LED into smaller, dimmer or very floody lights because of the low color temperature, as shown by the Kruithoff Curve.

Has anybody else tried this LED?

I bought one and plan to try it next week

eehm, it is very orange, a flame is very orange too. and the sun during sunset. I will make a picture tonight, next to a candle (no sunset tonight, it is very grey outside).

djozz wrote:

eehm, it is very orange, a flame is very orange too. and the sun during sunset. I will make a picture tonight, next to a candle (no sunset tonight, it is very grey outside).

Yes, of course, but is it a “nice” orange?

I’m looking forward to the picture, thanks.

It’s absolutely lovely orange! Not the yellow orange kind. Excellent imitation of a candle with super smooth spectrum.

Texas_Ace wrote:

Wow, a whole day without power of any kind?

If that happened worldwide….I shant even think of the consequences of such a thing…

Wellp, look on the <coff!> bright side.

Y’all get the chance to use your flashlights.

That is indeed a very, very good spectrum!
I notice that the Rg value is very high, colors should “pop”.

Yes, I think any normal burning object should do the trick.

I now want that LED even though I have zero use for it lol.

Might have to add one to an order if I get some more 4500k 144AM sometime. That boost driver has me wanting to give it another try.

What kind of optic is appropriate for the 144A? I know some of the first 6V samples had pretty impressive egg yolk, but my recent samples still make a huge yellow-green dot with a clear TIR optic (the famously crappy stock Prime one).

clemence wrote:

Hahaha, using any kind of lighting outside the house you’ll get fined ($10/head/act), arrested, and probably beaten using rattan stick by the Pecalang “traditional policemen” (it’s legal by hindu law here). Non hindu people still can enjoy anything inside the house or the hotel as long as there are no lights, noise, activities detected from the outside.

Seriously? That’s positively… weird.

So it’s not just a Save Energy Day, but somewhat religious? Interesting…

I could use something like that around here, though. Nice change of pace…

Well, minus the beatings.

You want a beaded Tir optic for that emitter, it works wounders. The floodier varieties give better tint mixing.

clemence wrote:

clemence wrote:

Should be a great lantern combined with Loneoceans’s in progress flickering driver.

Funny you mention that, ‘cause I got a few LED lanterns from Amazon for exactly that, swapping out the craptastic Angry  Blue™ LEDs with some nice 2000K LEDs scavenged from strip-lights.

No flicker, gonna use it probably with the come-with “volume control” circuit, or at least just the potentiometer from it.

https://www.amazon.com/gp/product/B06XH5WXXJ/

Texas_Ace wrote:

You want a beaded Tir optic for that emitter, it works wounders. The floodier varieties give better tint mixing.

I should have mentioned I’ve used beaded optics and it does look perfectly fine with them, but they aren’t as throwy as the clear ones. It seems like unless there is quite a bit of mixing, you get that huge yellow blob, so clear optics are out.

My take on catching the tint of the E21A sm203 R9050. I corrected the image a bit to match what I see in reality, not exactly right but close.

Left: Tool with E21A,
middle: small oil lamp
right: UT01 lantern conversion with 2000K 85CRI Stanley led.

Thanks guys, nice pics! It really does seem very similar.

Now I’m really thinking about modding that Novatac.

It would also be great for a table lamp when BBQing.

djozz wrote:

right: UT01 lantern conversion with 2000K 85CRI Stanley led.

Oh, you did something with that LED… kewl!

I remember you mentioning the Stanley, goggled all around trying to find somewhere to get some. Only RS in the UK had any, but shipping would’ve been obscene (and USD→UKP even worse), and Mouser or whoever was supposed to have some locally, had 0 stock and no resupply in the foreseeable future.

So I hit AX and grabbed pretty much anything that said “2000K”.

The Cree XP-E2 can be had with 2200K. It can even be de-domed to get around 1700K! But it’s not available with high-cri, if I recall correctly.