Candlelight, Campfire Simulator - Fireflylyte E07X FF351A 1800k

[SKV89]

A few days ago, I received the FF E07x with the new FFL351A 1800k emitters and X1L XHP70.3 HI 4500k and had time to extensively use the E07x.

For the past 7 or so years I've been wishing for a high power 90+ CRI 1800k candle light and camp fire simulator. The only ultra warm hi CRI emitters that existed in this category were the Nichia E17A 1800k and E21A 2000k but those were not high powered and were found in only a few lights. There is also the GT-FC40 1800k emitters but their tint is so far above the BBL (+0.070 duv) makes it look nothing like candle light and is horribly yellow and I hate yellow or green tint. I was afraid this new FF 1800k emitter would be like the GT-FC40 1800k but thank God the tint and performance is similar to the Nichias but much higher power. The DUV is basically zero, which is perfect for ultra warm candle light simulators since candle light and campfires have DUV of zero. I normally like negative DUV but only for higher CCT lights, for ultra warms, DUV between 0 to -0.002 is ideal. Too far below the BBL, and the tint won't look natural.

For those wondering what are some benefits or reasons for using ultra-warm lights. Here are a few off the top of my head.

1. exposure to blue light at night, especially from bright lights suppresses melatonin production (a hormone that regulates sleep and has anti-cancer properties) and increases cancer risk. There are sleep bulbs on the market that are advertised to help you fall asleep and reduce insomnia but all it really is, is an ultra warm cct light bulb and the ones I've tried in the past are all yucky yellow due to the very positive DUV, which is similar to the GT-FC40 1800k.
2. Some children prefer to sleep with lights on or at least with a night light, but blue wavelengths can inhibit their melatonin levels and hence reduce grown hormone production. I've been using a E21A 2000k flashlight as night light in my kids' room but will be switching to the 1800k.
3. Insects are attracted to blue light. If you use a CW, NW, or even conventional WW light during camping or night hiking, you will notice how it attracts annoying insects. Using an ultra WW light will alleviate this problem.
4. Many nocturnal animals are extremely sensitive to blue light because they will detect it as sunlight or danger and will hide immediately when they detect blue light. Blue light at night can also harm or misorient many nocturnal animals. And of course for anyone that enjoys the feeling of being immersed in candle light or camp fire atmosphere will surely appreciate a clean tinted hi CRI Ultra Warm light. For me, this light is like a dream come true and I find myself constantly playing with this E07x daytime and night time! Anduril's candle mode complements this 1800k light perfectly to create the ambiance of a flickering candle or cozy fireplace. The wine red E07x is also one of the most beautiful lights I've ever owned, looks much better in person than in my photos.
5. Blue light hurts your night vision. The less blue light, the better you can preserve your night vision. Using an ultrawarm light can achieve this and still perfectly render colors unlike monochromatic red or amber LEDs that are normally used for this purpose.
6. Blue light has a shorter wavelength than other colors of light, so it scatters more when it hits water particles in fog. This scattering can reduce your ability to see through the fog, and it can also increase glare because blue light scatters better inside your eyes. Lights with less blue wave length will pierce better through the fog.

I do have suggestions for FF to further improve this light though. While the LUME driver is one of the best and most efficient regulated flashlight drivers, I just wish we can have a FET turbo mode to allow the output to go all out like the original unregulated E07. Also FF might consider offering optional Green AR lens (that blocks green tint) to lower the DUV. Right now the duv is about 0.008. A green AR lens should bring the tint down just enough to reach 0.000. I'm just being nitpicky here.
EDIT: I just realized it does have Green AR coated glass lens. Now I just wish there is an optional stronger Green AR coated lens to lower the DUV further.

Below are my light measurements using the Texas Ace Lumen Tube and Sekonic C-800-U spectrometer. Please note that light meters are less sensitive to warm cct and reads higher lumens for cool cct so actual lumens should be a bit higher than measured if comparing to cooler temp lights. I included two other ultra warm category lights for comparison.

FF E07x Canon with FFL351A 1800K	Turbo	2,647 lumens​	2008K​	0.0013 DUV​	95.9 CRI​	Blue light relative amplitude 0.06​	74.4 R9​	89.4 R12​	93 Rf​	97 Rg​	Vapcell T50S
FF E07x Canon with FFL351A 1800K	Top of Ramp	1,003 lumens​	1964K​	0.0008 DUV​	94.8 CRI​	Blue light relative amplitude 0.05​	79.6 R9​	84.0 R12​	92 Rf​	97 Rg​	Vapcell T50S
FF E07x Canon with FFL351A	Random level	463 lumens​	1912K​	0.0007 DUV​	94.1 CRI​	Blue light relative amplitude 0.05​	77.5 R9​	81.1 R12​	92 Rf​	97 Rg​	Vapcell T50S
FF E07x Canon with FFL351A	Random level	168 lumens​	1905K​	0.0008 DUV​	93.8 CRI​	Blue light relative amplitude 0.04​	79.7 R9​	79.5 R12​	92 Rf​	98 Rg​	Vapcell T50S
FF E07x Canon with FFL351A	Random level	42 lumens​	1880K​	-0.0003 DUV​	93.5 CRI​	Blue light relative amplitude 0.04​	82.4 R9​	77.9 R12​	91 Rf​	98 Rg​	Vapcell T50S
FF E07x Canon with FFL351A	Random level	3 lumens​	1838K​	-0.0006 DUV​	92.9 CRI​	Blue light relative amplitude 0.03​	82.6 R9​	74.4 R12​	91 Rf​	99 Rg​	Vapcell T50S
FF X1L Elite XHP70.3 HI 4500K	Turbo	2,828 lumens​	5461K​	0.0024 DUV​	88.9 CRI​	Blue light relative amplitude 1.00​	55.5 R9​	72.9 R12​	87 Rf​	100 Rg​	Vapcell F56 5600mah
FF X1L Elite XHP70.3 HI 4500K	Top of Ramp	1,776 lumens​	5382K​	0.0027 DUV​	89.8 CRI​	Blue light relative amplitude 1.00​	58.6 R9​	72.3 R12​	88 Rf​	100 Rg​	Vapcell F56 5600mah
FF X1L Elite XHP70.3 HI 4500K	Random level	819 lumens​	4987K​	0.0050 DUV​	90.4 CRI​	Blue light relative amplitude 1.00​	58.3 R9​	65.8 R12​	89 Rf​	98 Rg​	Vapcell F56 5600mah
FF X1L Elite XHP70.3 HI 4500K	Random level	7 lumens​	4865K​	0.0058 DUV​	92.1 CRI​	Blue light relative amplitude 1.00​	66.7 R9​	63.7 R12​	88 Rf​	96 Rg​	Vapcell F56 5600mah
Emisar D4K E17A 1850k	Turbo	525 lumens​	1851K​	-0.0012 DUV​	95.0 CRI​	Blue light relative amplitude 0.05​	79.1 R9​	83.3 R12​	92 Rf​	103 Rg​	Vapcell G58 5800mah
Emisar D4K E17A 1850k	Top of Ramp	327 lumens​	1872K​	-0.0010 DUV​	94.7 CRI​	Blue light relative amplitude 0.04​	85.9 R9​	81.7 R12​	93 Rf​	102 Rg​	Vapcell G58 5800mah
Emisar D4K E17A 1850k	Random level	139 lumens​	1868K​	-0.0008 DUV​	94.2 CRI​	Blue light relative amplitude 0.04​	90.7 R9​	79.6 R12​	93 Rf​	101 Rg​	Vapcell G58 5800mah
Emisar D4K E17A 1850k	Random level	38 lumens​	1853K​	-0.0007 DUV​	93.9 CRI​	Blue light relative amplitude 0.04​	92.5 R9​	77.5 R12​	93 Rf​	101 Rg​	Vapcell G58 5800mah
Emisar D4K E17A 1850k	Random level	3 lumens​	1836K​	-0.0006 DUV​	93.7 CRI​	Blue light relative amplitude 0.04​	93.0 R9​	76.2 R12​	92 Rf​	100 Rg​	Vapcell G58 5800mah

 

[knucklegary]

I am not a fan of yellow or green tint shift either.
Nice clean warm tint!

What is the finish on the (SS?) bezels?

How's build quality, are threads smooth, any sharp corners or burrs didn't come off before ano..?

Thx..

 

[SKV89]

Black stainless steel bezels. Build quality is top notch. I heard FF is using the same coating company that does the anodizing for Olight, which is why it feels so premium now unlike the typical budget flashlights. FF's quality improved significantly over the years.

 

[Monocrom]

Thanks for the heads-up. Will have to give their offerings a closer look.