Convoy S2+

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grumpazoid
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Convoy S2+

Just seen this http://www.gearbest.com/led-flashlights/pp_44147.html which looks like a bargain.

However am I better off spending the extra for XM-L HI with biscotti firmware?

What do you guys reckon?

Thanks
Grumps

WalkIntoTheLight
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Yeah, that’s a very good deal. I was going to order one of those, but decided to order a BLF A6 instead. Seems like the A6 is a very similar light, but the user-interface is way better. Almost twice the price, but I think I’ll use the A6 more than twice as much as an S2+.

As a 3-mode light, the S2+ isn’t bad. But, the annoying blink when in low mode (to program the 3 or 5 mode selection), seems like it would really bug me. I know it’s a minor complaint, but really? They couldn’t come up with a better way?

raccoon city
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I'll second the BLF A6.

It's my EDC, and I like it a lot more than my Convoy S2+.

grumpazoid
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Will take a look at the BLF A6.

Thanks

Edit. A6 looks awesome.

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I think to buy 3rd Convoy S2+ Smile

 Genesis 1:3 "And God said, "Let there be light,"  and there was light."

grumpazoid
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Ok So have found the A6 on Banggood.

There seem to be two options. They look the same but the second one comes with a 30Q battery. Strangely this one id £5 cheaper???

https://www.banggood.com/BLF-A6-XPL-1600LM-7-4modes-EDC-LED-Flashlight-p...

https://www.banggood.com/BLF-A6-XPL-1600LM-74modes-EDC-LED-Flashlight-IN...

WalkIntoTheLight
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Yeah, I found that odd too. I think it’s just different listings, and they don’t always put them all on special at the same time. I ordered the one that comes with the battery. It’s a good battery, so why not?

grumpazoid
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Ok I am on the verge of ordering.

However I’ve searched the forum and can’t find an answer to this.

The specs from Cree seem to indicate that the cool 1A LED produces more lumens for the same current than the warmer tints.
Does this mean the 1A version is brighter?

Phlogiston
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grumpazoid wrote:
Ok I am on the verge of ordering.

However I’ve searched the forum and can’t find an answer to this.

The specs from Cree seem to indicate that the cool 1A LED produces more lumens for the same current than the warmer tints.
Does this mean the 1A version is brighter?

Yes, it does.

As a general rule of thumb, cooler tints are more efficient and therefore brighter than warmer tints, all other factors being equal. This is an effect of LED physics and applies to all manufacturers.

The reason warmer tints still sell is that many people prefer them and are willing to lose a few lumens in exchange for light that looks nicer to them.

grumpazoid
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Phlogiston wrote:
grumpazoid wrote:
Ok I am on the verge of ordering.

However I’ve searched the forum and can’t find an answer to this.

The specs from Cree seem to indicate that the cool 1A LED produces more lumens for the same current than the warmer tints.
Does this mean the 1A version is brighter?

Yes, it does.

As a general rule of thumb, cooler tints are more efficient and therefore brighter than warmer tints, all other factors being equal. This is an effect of LED physics and applies to all manufacturers.

The reason warmer tints still sell is that many people prefer them and are willing to lose a few lumens in exchange for light that looks nicer to them.

Awesome Thanks.

Persechini
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In my opinion the biscotti driver is worth it, no configuration blink in low mode, and many more mode groups to choose from, moonlight mode, which is absent in the 3/5 driver

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My collectionConvoy: C8 Clear / S2+ Clear / S2+ / S2+ UV / S6 ― Nitecore: Tube / Thumb / Concept 1 / HC30 ― Trustdire: Z2 ― Sofirn: SF10 / SF12

Ollie
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grumpazoid,

Yes, the cooler 1A tints are brighter, but they wash out the contrast. To my eye, they make everything look two dimensional, like a cardboard cutout. The warmer tints, and my favorite is probably 5000K, which is neutral white, make things look more life-like. I just built some lights with a 3D tint. I really like it! There have been some very good explanations on this forum (SoCalTiger) about how light interacts with the eye. Polls taken here put 5000K at the top of the list. It's not just a preference, it's choosing what helps you see better. That's what this is all about, isn't it?

Ollie

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Silenstar… your avatar is soooOOOO cute! Blushing

grumpazoid
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Ordered the BLF A6 with 3D tint battery included.

Thanks for all your comments.

Loving this forum!

Phlogiston
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grumpazoid wrote:
Ordered the BLF A6 with 3D tint battery included.

Thanks for all your comments.

Loving this forum!

That’s a good one to go for.

I have a couple of those myself. They offer a nice combination of practical mode levels for day-to-day use and silly-bright ones to play with Smile

keltex78
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WalkIntoTheLight wrote:
But, the annoying blink when in low mode (to program the 3 or 5 mode selection), seems like it would really bug me.


Keepin’ the “B” in BLF

Don wrote:
It sounds like the XM LEDs won’t really be suitable for flashlight use. Pity…

Tangra
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Ollie wrote:
grumpazoid, Yes, the cooler 1A tints are brighter, but they wash out the contrast. To my eye, they make everything look two dimensional, like a cardboard cutout. The warmer tints, and my favorite is probably 5000K, which is neutral white, make things look more life-like. I just built some lights with a 3D tint. I really like it! There have been some very good explanations on this forum (SoCalTiger) about how light interacts with the eye. Polls taken here put 5000K at the top of the list. It’s not just a preference, it’s choosing what helps you see better. That’s what this is all about, isn’t it? Ollie
This should be written somewhere and every new user must read it before open this forum.
stephenk
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Biscotti is miles better than old UI and well worth spending a few extra pennies on. Don’t forget that you can get Biscotti in any S2+ on request at Convoy’s AliExpress store.

WalkIntoTheLight
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stephenk wrote:
Biscotti is miles better than old UI and well worth spending a few extra pennies on. Don’t forget that you can get Biscotti in any S2+ on request at Convoy’s AliExpress store.

Why don’t they make it standard?

Yokiamy
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The blf A6 with 30q is on flash deal at Banggood, which makes it very interesting, i was thinking of buying it as well, but almost holiday so bad timing for me.

I have enough S2+ es now. Especially when the clear (from GB finally) arrives. (Still waiting)
Generally, shipping of Banggood is way better then GB.

WalkIntoTheLight
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Ollie wrote:
Yes, the cooler 1A tints are brighter, but they wash out the contrast. To my eye, they make everything look two dimensional, like a cardboard cutout. The warmer tints, and my favorite is probably 5000K, which is neutral white, make things look more life-like. I just built some lights with a 3D tint. I really like it! There have been some very good explanations on this forum (SoCalTiger) about how light interacts with the eye. Polls taken here put 5000K at the top of the list. It’s not just a preference, it’s choosing what helps you see better. That’s what this is all about, isn’t it?

(A bit off-topic, but…) It’s also about what you’re illuminating. A cool-white LED is brighter than a warm-white LED, but if you shine that light on a red towel you’ll notice that the warm-white light shows up much brighter. That’s because the warm-white light has more spectrum in red, even though overall it’s dimmer.

If you illuminate white-paper, the cool white LED will be brighter. That’s how it’s measured. But that’s not how the natural world is structured. If you’re in a mature forest, there will be a lot of brown in tree trunks and leaf litter. Brown (which is really a dim orange), is better illuminated by warm tints. So your warm-white LED light may actually look brighter than a cool-white LED light.

On green grass, the cool-white will look brighter. Cool white is optimized for blues and greens. Warm white is optimized for reds, orange, and yellows.

Ignoring brightness, warm-white LEDs usually have higher color rendition than cool-white. Cool-white LEDs are generally around 65 CRI, while neutral is around 75 CRI. Of course, you can get premium LEDs that give much higher CRI, such as a Nichia 219 LED (my favorite). But you pay a price for higher CRI, with usually much less brightness.

Ollie
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stephenk,

The 35% medium is too low for emitters of moderate power. If you could run a XHP50.2, then the medium would be about right, but that's a 6V (or 12V) emitter. I just got 2 drivers from MTN, 10, 60, 100. In effect, low, high, and turbo. 35% only makes sense to me if it's a second out of four modes.

Ollie

Ollie
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tangra,

Thank you! Gotta say, I have shelves of lights that I don't use much anymore, because of 1A.

Ollie

Ollie
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WalkIntoThe Light,

I just ordered 6 Nichias, 4 219Cs and 2 319A(?)s. A first for me. I usually get CREEs. I like the greenish tint in some CREEs, just because it makes the green grass pop; the contrast makes it easier to see somethng that is not green, like a dog. I do think cool white shows up animal eyeshine better than really warm tints. It’s all a compromise. We’re not going to carry several flashlights just so we have the best tint for each scenario. I’m leaning to 5000K for it all, but I did order some 4500Ks. For me, 4000K is getting too warm. Just personal preference. Ollie
grumpazoid
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Yokiamy wrote:
The blf A6 with 30q is on flash deal at Banggood, which makes it very interesting, i was thinking of buying it as well, but almost holiday so bad timing for me.

I have enough S2+ es now. Especially when the clear (from GB finally) arrives. (Still waiting)
Generally, shipping of Banggood is way better then GB.

Yes couldn’t believe you get a battery included for much cheaper than the A6 on its own. Lucky timing for me. Cool