I have now had time to read the review. Most excellent stuff. If we can get a good price on this on a GB, ill sure jump on this

PD - I also prefer the 348...when I am at work. That is because I like the clip and have an available shirt pocket for it. (BTW - For your little driver...try to get with Dale. I think he has something that can fit. I was going to do that until I ran out.)

On the other hand..the pocket clip does not matter for the vehicle or the house etc. Actually the tail attachment would probably be more useful because a lanyard can be attached or a metal ring which in turn could be attached to one of those HF carabiners.

As for Colors.....if everyone asked RemanG to to start an interest list to show that a color (or colors) is worthwhile I know that you guys will get them. There has just has to be enough serious interest to make it happen.

Depending on the final price, and coloring options, I’d take at least 2.
This could be a replacement for my current keychain light.

Probably get one to see what’s all the fuss is about regarding nichia tint.

Hello!

Just saw this while wandering over Banggood store. How cute!
A couple of years ago I ended up modifying a Saik SA-9 by replacing its XR-E with one of those 219B’s. Despite a (to my eyes) somewhat lackluster beam divergence, in no time I had to sell it to one of my friends who got fancied by. Tint and colour rendering were amazing…
I’d really like to know more about this being driven with li-ion 10440s, mind you.

Cheers

If appreciably less than $10, I’ll be in for a few.

kbear99 wrote:

If appreciably less than $10, I’ll be in for a few.

Looks like a nice well built light. I’d like one in orange and camo. Anyone other than BG selling this?

Any thought whether it’d work to swap in an amber emitter on these?

If it’s a current limited driver it should work OK. But “should” fools me often.

ReManG wrote:

100 lumen on a Nichia 219B should be in the 600-700ma range…

Guesstimation battery to driver current load for alkalines? :quest: Well, that should mean about 800+mA of load for NiMH/NiCD class batteries, better suited for sustained high output operation.
How hot does this thing gets after a good while on HIGH?

Cheers

ReManG wrote:

… The 600-700ma was speculated by me, at the emitter. As it will be a boost driver, expect about 1500ma at the tail, which would equate to a 30 minute runtime, which is about accurate on high.

Really? That would be a pretty poor lumens/watt ratio.
Nichia 219B datasheet

Manufacturer claims above 100 lumens of output for 350mA driving current (optimistic if specced at 25º operational temperature, of course). For 400mA at the emitter (at about 3Vf), that would mean no more than 1’2A at the tail for a 1’2V battery, unless the driver efficiency sucks big time. Is there any other sort of drawback I don’t know of?

Cheers

Got my two A01’s today. Nice color rendering and natural warmish white tint. Changing the modes is a bit flimsy and the light flickers a bit while turning the head.

Here’s some measurements. The Astrolux A01 has a true high CRI Nichia unlike the Rayus C01.

ReManG wrote:

I am guessing, since you have more knowledge about this, we will go with your view. … The only drawback is you took my totally wild guess and ran with it like I tested it. Really…

LOL! :bigsmile:

Just checked out some boost driver reviews at lygte-info.dk, just to find out most of them are underwhelmingly efficient, to say the least. It is, thereforely, perfectly possible for the led to be getting the driver output current I presumed (≈400mA) while sucking up those 1’5A of input from the battery you presumed. Corollary: those driver designers should be summarily executed, for fuck’s sake. :Sp

Cheers

ReManG][quote=maukka wrote:

Wow, you are going to be an asset here on BLF! Thanks for this update, really useful information…

Thanks! Here’s an album with some more measurements.

http://imgur.com/a/Fe5Jh

Here’s a runtime test on high with an Eneloop. Battery voltage was under 1 volts in the end. Fan was used to cool the light.

Maximum temp was 33°C @ 10-20 minutes. After that it dropped gradually.

Appreciated information, maukka.
What was the ambient temperature during measurement?
Seems to operate pretty cool, good news for those of us who live in places of 40+° summers… 8)

Cheers

Ambient temp was 25°C. I will do another test without a fan later.

Waiting on the GB

Woah, gimme AN HANDFUL of those lights!! Brilliant upgrades! Thanks for the review, this really came as a nice surprise.

And for those looking for a (deep carry) clip:

!{width:50%}http://img.banggood.com/images/2014/chenjincheng/07/SKU257160/SKU257160.jpg!

(also available at BG for very little money)

Nice flat regulation there for a AAA cell.
Thank you for doing the test for us.

Can’t see the clip image posted?

Gunga wrote:

Can’t see the clip image posted?

  As if I would care… :ghost:
  Pretty sure you can find whatever kind of clip he intended to show us for WAY LESS than half the price off eBay.
  Sure, Banggood may have some nice deals but… that’s about all. Their webshite’s search engine is such a disgusting pile of horseshite it makes me want to fix whoever are to blame’s retarded brains WITH MY AXE! And that’s just only one of many jackassly designed/implemented/maintained “features” of their webshite. From time to time, their “can’t see what’s wrong with what you say” attitude and lies mocks me to no end. What a handful of advertisement overspending donkeyass douchebags! (I have to resort to think of them sometimes…)
  Don’t get me wrong, nothing against them, really. 0:)

Cheers

Interesting, did another runtime measurement with a second A01. This time without a fan. This one runs a bit longer with the same battery and of course got a whole lot hotter. Maximum temp was 54°C @ 25-30 minutes in 26°C ambient. Not comfortable to hold with bare hands.

edit: updated the graph after measuring lux on both of the lights after 5 minutes. The output is the same +-2%. For some reason the Grey one runs more efficiently or the fan is actually detrimental in this case. I will have to measure the purple one again without a fan.

edit2: Note to self: do not measure runtimes with batteries that have less than 5 cycles on them. The runtime with the Eneloop Pro AAA has significantly increased on both lights after couple of more charge-discharge cycles

maukka wrote:

… edit: updated the graph after measuring lux on both of the lights after 5 minutes. The output is the same +-2%. For some reason the Grey one runs more efficiently or the fan is actually detrimental in this case. I will have to measure the purple one again without a fan. …

  Nice. Let me point out a couple of things:

1. LED’s light output performance (usually) is inversely proportionate to its temperature. According to the usual Relative Luminous Flux VS Junction Temperature graphs which can be found on most Cree led documents, these about 20º of ∆T may mean a reduction of 5% in light output for the… so what the hell is going on with that silver/grey unit? Nothing really I think, because…
2. To my knowledge, battery internal resistance is also inversely proportionate to temperature, and that may be having a much deeper impact on overall performance since the driver could be operating in a noticeably more efficient way due to the increased input voltage.
3. Am I speaking bullshit? Where the fuck is my beerp!? ROFL!

Cheers