Convoy S2+ Violet Review

DavidEF · 2018-08-21T13:36:02.000Z

Nice! I like the color. Thanks for doing this review.

everydaysurvivalgear · 2018-08-21T19:22:18.000Z

Thanks mate!
Yea it sure is a looker, I might get the set i think they look awesome this colour is probably my favorite.

TBone · 2018-08-21T20:14:11.000Z

This host needs a violet LED…

DavidEF · 2018-08-21T21:26:07.000Z

TBone:

This host needs a violet LED…

Or a triple composed of a 400nm UV and a violet and a deep blue?

Cereal_killer · 2018-08-21T21:53:21.000Z

DavidEF:

TBone:

This host needs a violet LED…

Or a triple composed of a 400nm UV and a violet and a deep blue?

Does PMMA pass 400nm UV?

I’ve been thinking about incorporating a 365nm emitter into a triple build, I was gonna try to find a tiny reflector the size of one of the TIR’s in a carlco and drill it out but if it passes 400nm I might as well just do that.

DavidEF · 2018-08-21T23:06:12.000Z

I’m pretty sure I’ve read multiple times around here that pmma will NOT pass 365nm but will pass 400nm just fine. I haven’t tried it myself, but I’ve been involved in a few UV LED threads, and a few other threads where UV was mentioned. Remember too that some things that will fluoresce with 400nm will not be affected by 365nm and also the other way around. So, if you have a specific thing or substance you want to “light up” using UV to fluoresce, you should check to see what wavelength will be the most effective.

P.S. There are some (Ledil?) optics that are not pmma and do pass 365nm UV. Or so I’ve read.

gravelmonkey · 2018-08-22T00:34:42.000Z

Cereal_killer:

DavidEF:

TBone:

This host needs a violet LED…

Or a triple composed of a 400nm UV and a violet and a deep blue?

Does PMMA pass 400nm UV?

I’ve been thinking about incorporating a 365nm emitter into a triple build, I was gonna try to find a tiny reflector the size of one of the TIR’s in a carlco and drill it out but if it passes 400nm I might as well just do that.

That’s some precision engineering! Ive wanted a triple purple S2+ for a while now, might give it a go with a cylindrical spacer the length and space of an optical. It would be a mule beam but that’s not such a bad thing with UV.

SKV89 · 2018-08-22T01:08:34.000Z

My wife likes the purple too. I put in a triple 219B 4000k for her.

everydaysurvivalgear · 2018-08-22T07:32:29.000Z

Yea i got one of the new high CRI SST20 triples i will use in here.

d_t_a · 2018-08-22T09:23:33.000Z

I’ve measured the tailcap current and these (XM-L2 7135x8) variants are 2.8A (8x 350mA = 2.80A instead of 8x 380mA = 3.04A).

I’ve also ordered the new metallic color, and they seem to be similar design as the older S2+ except for the metallic tailswitch (which is on the previous red/green/blue, but not the black/grey which use rubber buttons).

However, the new colors (purple/orange/cyan) body tube didn’t seem to use the reversible clip position that’s present on the Clear Silver and the Desert Sand. (in the Desert Sand and Clear Silver S2+ body tubes, the pocket clip can be positioned near the tail or near the head since both have the same “depression” (what’s the correct term?) for the pocket clip to hold onto.

Additionally, I notice that the colored S2+ come with a nicer quality adjustable lanyard strap, compared to the older black/grey S2+ (which comes with a basic non-adjustable lanyard strap). The Clear Silver and Desert Sand S2+ also come with the same higher-quality adjustable lanyard strap, but their package also includes the pocket clip (the pocket clip is not included in the other colored packages).

TBone · 2018-08-23T16:20:32.000Z

DavidEF:

I’m pretty sure I’ve read multiple times around here that pmma will NOT pass 365nm but will pass 400nm just fine.

Here is a diagram (second one).

emarkd · 2018-08-23T11:57:33.000Z

I built a Dragon setup in my Purple, with LH351d primaries and 365nm UV secondaries. Like others have said, the UV doesn’t pass through the optic at all. So I turned it into a mule setup with dual-channel white + UV, and added a purple tailcap “ring”. I do really like this purple. Wish the optic would’ve worked out, but mules are neat too.

By the way in that pic of the lighted emitters, the Samsungs aren’t powered - they’re reacting to the UV from the secondaries.

bmengineer · 2018-08-23T12:38:33.000Z

emarkd:

I built a Dragon setup in my Purple, with LH351d primaries and 365nm UV secondaries. Like others have said, the UV doesn’t pass through the optic at all. So I turned it into a mule setup with dual-channel white + UV, and added a purple tailcap “ring”. I do really like this purple. Wish the optic would’ve worked out, but mules are neat too.

By the way in that pic of the lighted emitters, the Samsungs aren’t powered - they’re reacting to the UV from the secondaries.

Looks amazing. What did you use for the ring in the tail?

emarkd · 2018-08-23T13:06:33.000Z

bmengineer:

Looks amazing. What did you use for the ring in the tail?

Its a 6-led ring board mounted above the switch, with true purple LEDs. They’re inefficient as hell though, to be honest, so I’m not sure I’d recommend using them. They’re drawing several mA and still aren’t very bright, orders of magnitude less efficient than green or blue LEDs. But its a purple host, I needed a purple ring

That said, I bought some other “purple” LEDs with a phosphor layer, not a single-wavelength emitter. They’re not nearly so vibrant purple, more of a pinky-lavendery color, but they also look nice in these lights and are much more efficient. I may swap some into this light just to make it more shelf-stable.

DavidEF · 2018-08-23T19:34:27.000Z

emarkd:

I built a Dragon setup in my Purple, with LH351d primaries and 365nm UV secondaries. Like others have said, the UV doesn’t pass through the optic at all. So I turned it into a mule setup with dual-channel white + UV, and added a purple tailcap “ring”. I do really like this purple. Wish the optic would’ve worked out, but mules are neat too.

By the way in that pic of the lighted emitters, the Samsungs aren’t powered - they’re reacting to the UV from the secondaries.

I wonder if it would work to use an optic drilled out just above the UV LEDs so they have an open hole to shine through, but the white emitters would still have TIR. That way, the whites also might not fluoresce while UV is lit, if the optic material stops the UV from hitting the white emitters.

emarkd · 2018-08-23T23:28:29.000Z

DavidEF:

I wonder if it would work to use an optic drilled out just above the UV LEDs so they have an open hole to shine through, but the white emitters would still have TIR. That way, the whites also might not fluoresce while UV is lit, if the optic material stops the UV from hitting the white emitters.

I’ve been experimenting some with things like that and really haven’t hit on anything great yet. The UV emitters are really floody as you’d expect, so any holes drilled only pass a very small amount of UV, most of its still trapped under the polycarb. I found some UV-pass fiber optic cable and cut some up trying to build some sort of…tunnel for the UV to pass through, but its tiny and in very tight quarters, so my experimenting so far has been underwhelming. Its not an easy problem, really just needs some reflectors

Meelo · 2018-11-13T05:07:20.000Z

https://www.fasttech.com/products/1653/10002364/9656149
“Cree XM-L2 HI T6-4C ”

whats the HI?

higher cri?

d_t_a · 2018-11-13T05:34:44.000Z

Meelo:

https://www.fasttech.com/products/1653/10002364/9656149
“Cree XM-L2 HI T6-4C ”

whats the HI?

higher cri?

A typo most likely. Should just be XM-L2 T6-4C. The Convoys with XPL-Hi are usually U6-4B or U6-4C.

everydaysurvivalgear · 2018-11-13T05:40:05.000Z

Yea its a typo i told Fasttech to fix it but i don’t know what happen.

TBone · 2018-11-13T05:57:30.000Z

I think in this context it means “HELLO”.

It is a typo, from the XP-L HI (High Intensity) that the newer versions use.
The typical CRI for neutral white XM-L2s is 75.
.

Btw I really recommend the Biscotti driver. Much better modes and no annoying blink each time I switch it on or change mode.