My wife is a school nurse and although it rarely comes up, she would like a penlight to allow her to check student’s pupils in the event of a concussion. Already purchased one but it’s really too bright for the purpose. Nice to find one that’s downwardly adjustable to very low lumens.
3 modesalways starts on low
Nichia high CRI emitter
@ 180lm high mode, it’s also a pretty respectable (and carryable)
flaslight.
Wow! That’s the real deal. I wonder if a coupon code would be available for such a light.
It is. I have had this light about 6 months and am VERY pleased with it.
Though I can’t remember exactly what I paid, I certain it was closer to $20 than $30 with a coupon.I don’t see coupons for this often.
A far more inexpensive and also nice pen flashlight: Lumintop IYP365 Nichia @ GearBest (affiliate link from Trevi_lux, use code IYP365 for a few cents discount).
Cheers 
Looks good. I’ll read up on it. Much less expensive. Thanks.
I’d suggest Klarus P20 (Nichia 219C, 5000K).
- 3 mode with last mode memory
- optics, which provide a smooth beam pattern ideal for fine investigations
- high CRI (color rendering index)
As of my current knowledge, the previously mentioned Nitecore MT06MD, and the Lumintop IYP365 is also high CRI (edit: go for the Nichia 219B version, which is high CRI and has a “warmer” color temperature (4000K) - do not even consider the XP-2G version).
Here is a group buy thread (you can save a fairly good amount) for the P20:
I gave away a YP365 (and i paid alot for it at that time, like 25 euro) to a doctor of the emergency area, i think it was happy with it. It' s also pretty stilish with the satin finish and the gold ring detail. IMHO
NICHIA version obviously
Special clinician version flashlight:
https://www.amazon.com/NEXTORCH-Dr-K3-Nextorch-Penlight/dp/B0191B45AO/ref=sr_1_2?ie=UTF8&qid=1516370534&sr=8-2&keywords=nextorch
My father-in-law’s wife, mobile emergency doctor, uses IYP365 Titanium Nichia version
Manker E21
1 or 2 x AAA, Nichia, Forward clicky, 3 modes :+1:
I second that, I gave one to the Medical Director at the Community health clinic my wife works and she loves it. btw, she is an active MD.
ken
The Lumintop sounds like a winner,price-wise. As per my wife’s needs, I do wish the mode range started at low. I reckon she’s smart enough to click through the modes to low when she needs to(although sometimes I wonder).
Just my 2 cents. Id get something with low mode max 2lumens. I have alight that is 3 lumens and it is too bright in my eye.
Never drink and shop on-line. I’d had a few beers last night and said wtf and ordered the Lumintop IYP365 Nichia. Didn’t even occur to me to wait and ask for a coupon in the morning. Lo and behold, Trevi had a coupon for $4 off on that specific light this morning. Its not so much the 4 bucks, its just the……well , you know….its why I’m here on the BLF.
Utorch Ut01
My daughter is a nursing student and she uses a ThorFire PF04. Has three brightness levels (0.5/50/210) and runs on two AAA.
Nitecore Tube 
This lamp is single mode though, so no moonlight as OP hinted he’d need.
I agree. I have the klarus p20 and i feel that its 4 lm mode is still too bright to shine into somebody’s eye, but i am not a doctor. Maybe it is safe.
If you need a cheap light with very low mode, UT01 might be ok, but there is no Nichia/ high CRI option.