Relatively few, really. I’ve got a few UV lights, like the BLF/Rominson Special dual-UV and the Convoy S2+
As far as colored emitters go, I built a matching set of colored Convoys, blue in the blue host, etc. Looks like this:
I also have a “hunter edition” HDS Rotary in Zombie Green cerakote.
As far as what I use them for? Honestly? Nothing really, unless taking pictures of them to post online counts. 
Coolest flashlight pics I have ever seen so far, emarkd !!
I second that! :nerd_face:
outstanding, yes, that definitely counts 
I use UV for inspecting currency (entertainment, never seen a counterfeit yet)
I use 2700-3000k at <1 lumen for nightstand (I consider it Amber)
I use a green filter on a Cool White LED, when working with photosensitive Tomatoes, so they don’t get spooked and run away, same as deer… LOL…
I have an Angry Blue Fenix E01 to demonstrate differences in Color Temperature photos I post here (I consider it Blue anyway)
I have red LEDs on a Manker Lad, they are useful also for dark of night toilet runs
Here is a Hunter Green HDS, not mine, I like the idea that it won’t spook Bambi
I’ve got an oddball C8 sized host that I was able to wedge a ~40mm optic in at the proper depth to make a fixed-focus green xp-e2 thrower for spotlighting game at night.
Also have a couple of UV lights, one with a 365nm emitter and uv-pass filter. The second is a funky reflector-triple with some cheap 390nm emitters.
Also have a couple of old color XR-E P60 dropins that haven’t been used in a long time.
I want to get a 3535 cyan emitter and build a light just for kicks, and maybe try for blood tracking.
Then… BAM!
Mostly just UV, 365nm.
BLF Romisen UV
Have many WW, Neutral ones….
I have the UV Convoy S2+ for finding scorpions and anything else UV related, plus an old Maglite 3 AA with the red Maglite lens in it because the local nature preserve occasionally does night walks and they require a red light flashlight.
Nitecore MTIU 365nm, used for finding pet stains and unusual stuff. You never know when you happen upon a disco dance party.
I want to protest/question. Is this a raciest post?
A lot of my friends are black flashlights. 
Only one non-white: modified toy led (blue) to red , night map reading aid.
Convoy S2+ with Nichia NVSU0233B about 2W of 365nm
Convoy S3 with Lite-On 365nm @1050mA
both with zwb2 filter
Elekin UC17 modded with MELD white +RGB+UV
modded the board, so the XPL is on DTP and the RGB+UV board glued on top
Convoy M1 “CYANIDE”
Four Rebel cyan emitters
I’ve taken this light for walks through the paths in the ravine and the cyan is actually a quite pleasant tint for green spaces. It also clearly illuminates for a an easy visual.
I just got a couple of these amber triple P60 dropins from Kaidomain to use in my neglected Solarforce lights.
KDLITKER P6-TRI Triple Cree XP-E2 Amber 590nm 800 Lumens 3V - 9V 5-Mode P60 Drop-in (Dia. 26.5mm)
Plenty bright in a 1-cell Solarforce host, and fine in the 2-cell host (Solarforce L2).
I have multiple red lights and IR lights I’ve built for hunting. Probably 15 total.
Bob has this one
New meaning to Black Flat.
Hmm, forgot about these, but I do have some more flashlights-of-color (they don’t like being called non-white) in red‘n’green, a few HS-802s.
Nice deep reflectors, pushes the spill out farther so the ground in front of you doesn’t get so washed-out. Stick in a small emitter (XP-E2, ferinstance) and you get a nice small tight bright hotspot to boot.
Convoy C8 - 5050 Epileds UV 400nm (fluorescent powdercoated host by 3Tronics almost glows when on)
Convoy C8 - 3535 3rd-LG UV 365nm (LD2 driver + swapped reflector: quite a thrower)
Convoy S2+ - 3535 Nichia UV 365nm
SK68 - 3535 led from old S2 365nm
The rest of my UV lights got into a GAW
Thorfire VG10 - 5050 Epileds 450nm blue led (gives me the creeps every time I fire it up)
Nitecore EA11 - Cree XM-L2 U2 + secundary red led