You have an RRT01 with red 620nm? Too cool. 250Lm is pretty darned bright. I don’t think there’s anyway my TiS red 625nm is only 20Lm on high with Eneloop AAA. But maybe Vinh did something to it to get it brighter. I’m sending it back to him for a little love (the pill may have moved) when he does my V11r sw30 swap, so I’ll ask him to check the output.
Thanks for the link. Checking it now.
Edit: that red JetBeam is pretty sweet. You’re making me waffle. Maybe I should get another V11r for red and smooth ramping… decisions decisions.
I can’t really pin that down, but in a general sense, helping preserve dark adapted vision. I am aware that bright red can obliterate dark adapted vision, but if I need a room lit up and hands free, a brighter red on the other side of the room ceiling bounced lets me see while I may be preparing some cold reaction with alcohol that is photosensitive until I can get it into a dark bottle. Or maybe because they are low key lights, don’t attract a lot of attention. Turtle watching, definitely. Nah, I just like red flashlights.
I just heard about Noctigon about a week ago, and just saw the Noctigon KR1 today. Can be configured with an Osram CSLNM1.23 Red 617nm. 18650/18350 light, not sure about that low wavelength of red, but I am sure it must be bright. It is an attractive host, has a reflector for throw, and no customizing will be needed. I expect would be half the total cost of customizing a Zebralight. But I’ll have to give up AA, and 625nm-660nm. Considering for next month, matte black with a red trit would be keen. Maybe I’ll get one with a green emitter, also.
lightdecay will better know the procedure and cost, but apparently you can custom order a KR1 with the SST-20 660nm variant ( SST-20-DR-B120-V660, not the regular white SST-20)
that would be best
when you buy a light that was built to run Red, the outputs will be more predictable, and maybe more practical, than when modifying a non red light.
My aaa C01r has good mode spacing
My aaa Tool modded to the same red, has weird mode spacing
lumen output drops by about 50% in an RRT-01 w 620nm
in this next example you can see 620nm is about 30% brighter than 660nm:
Thrunite T10T V2
the light has 4 brightness levels
watch the lumens go down as I swap LEDs
lumens for level 1 thru 4, with five different LEDs:
NW XP-L 0.4, 5, 55, 140
3000k 219b 0.23, 2.0, 30, 82
620nm Red 0.1, 2, 26, 105
660nm Red 0.1, 1.4, 18, 80
730nm Red 0.04, 0.2, 1, 5
Osram CSLNM1.23 Red 617nm will be quite orange. Do you like deep red? You can email Hank and order a custom Noctigon KR1 with SST-20-DR Deep Red 660nm.
Unless you need a lot of throw, have you considered a Noctigon KR4 instead? It is similar to KR1, but more floody, more efficient, and somewhat brighter. You can email Hank and order a custom Noctigon KR4 with SST-20-DR Deep Red 660nm and 7.5A CC driver.
Because you wanted deep red and a lot of red lumens, I recommend Noctigon KR4. With 4 deep red leds, my guess is that it can do around 1000 lumens on turbo.
Hmmm…. very interesting [strokes imaginary goatee]
I am sure it will be orangy next to higher frequency red, but by itself should appear red enough… advantage is in apparent brightness. I think I am at least two weeks out from actually seeing 660nm for the first time first hand, 2x C01r on the way, bought them just to see the output. Thanks for confirming ggf31416’s notice of same about a custom order deep red Noctigon.
I have a 4Sevens Atom A0 Red, and it is floody, but not very bright, and an AAA battery crusher. I don’t really care for full flood, but considering the red Atom, it isn’t bad. What I will consider is getting both, neither throwing red nor 1000Lm of red flood would be easy to pass up.
And keep it up, jon_slider, you’ll see what happens (people will know more!)
Differences apparent in brightness and color, but I wouldn’t say stark differences; notably, but not overwhelmingly brighter red-red-orange vs bruised strawberry.
But color is weird, but it isn’t color that is weird, but instead our brains are very weird.
Case in point, color constancy causes many to see red strawberries, but there are no red pixels in this duotone, only grey and green.
Color is weird.
Moving on… I have read that gold is the most efficient reflector of infrared. I wonder if there is some more efficient reflector material between silvered and gilded that would be a more efficient reflector of 620nm-660nm than common silvered reflectors, or if there is a way to tune reflector material to particular wavelengths, and what that would look like or be called, and how to get a reflector that uses it.
