Question 1

What are the lumen ratings and run times for all 5 brightness settings?

Accepted Answer

The 5 brightness levels with the respective run times are as follows: 1200lm - 2.5h, 600lm - 3h, 240lm - 4.2h, 120lm - 17h, 60lm - 26h :)

Question 2

Anyone having issues with memory function not turning on last setting? If left on lowest setting amd tunred off seems to turn back on highest setting?

Accepted Answer

No.  No trouble.
It is necessary to wait at lease 3 seconds on any setting before single click OFF, so the last illumination level is stored in memory.
I give it 5 seconds to store the last setting.  Getting impatient is probably the issue, as I do that and then cycle through them all to get back to where I wanted to be.  Failing like that teaches patience.
Then when turn it on, it detents to the last setting; AND, single click on low does bounce it to high.  Same as if you press it and hold until it begins to cycle through the settings.
I like it as one can keep it on low setting for immediate area and then single click to light up the worls like the second sun.

Question 3

Anyone have any problems using other 18650 batteries with this headlamp?

Accepted Answer

It all depends on the battery used.
I have some batteries that falsely advertised high mAh, and I charged them before testing in this lamp, and they actually get about as bright as step 3.  One brighter than the lowest.
My chargers show volts, and they were 4.2V FRESH CHARGE and that is the best they can do.
The battery that came with it is excellent as far as brightness. Did not do an mAh test as have other backup batteries on hand that  I tested that are true 3,000mAh.
The ones that fail are longer (70mm)  than the 3KmAh (67mm), but the 3KmAh kicks butt in this lamp and lights up the world.  
There is no contact issues inside the battery compartment with the weak ones.  I think it is the Amp rating.  I see some 18650s have higher amp ratings than others.  Amps to me = power, as voltage without amps is never as good as same voltage with higher amps.  For the electronics experts out there - I KNOW that watts is defined as power; however, I say AMPS IS THE REAL POWER.
This experience leads me to believe that the people complaining about the lamp not being bright, and the ones about battery life do not get it that the battery, not the lamp is the culprit.

Question 4

Is it possible to turn off the side facing lights when using? Thank you.

Accepted Answer

The power button's light shows the charge level and also allows knowing which brightness setting is turned on, there is no way to turn this function off :)

ASIN	B08CHJQHCW
Additional Features	Rechargeable, Water-Resistant, adjustable, elastic-band
Battery Description	Lithium
Battery Life	26 hours
Battery Type	Lithium Ion
Best Sellers Rank	#23,058 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #219 in Camping Headlamps
Brand Name	Foxelli
Color	Black
Customer Reviews	4.3 out of 5 stars 938 Reviews
Finish Types	Matte
Included Components	Battery
Item Highlight	Up to 26-hr runtime, USB-C charging, Magnetic base, 180° tilt, 5 modes, Aluminum, 5.9 oz, 4 Clips Included
Item Shape	Headlamp
Item Weight	0.27 g
Light Output Maximum	1200 lumens
Light Source Special Features	Multiple Light Modes, Memory Function
Light Source Type	LED
Light Source Wattage	15 watts
Manufacturer	Foxelli
Manufacturer Part Number	Foxelli-MX1200B
Material	Aluminum
Material Type	Aluminum
Model Number	Foxelli-MX1200B
Mounting Type	Head Mount
Number Of Light Sources	2
Number of Batteries	1 Lithium Ion batteries required. (included)
Number of Items	1
Number of Packs	1
Power Source	Battery Powered
Recommended Uses For Product	camping, hiking, running, dog walking, fishing, crafting, house maintenance chores, repairs, work, outdoors, night shift work
Runtime	26 hours
Special Feature	Rechargeable, Water-Resistant, adjustable, elastic-band
Specification Met	IPX7
Style Name	outdoor/sporty
Unit Count	1 Count
Voltage	3.7 volts
Warranty Type	Limited
Water Resistance Level	Waterproof
Wattage	15 watts
White Brightness	1200 lumens

Foxelli Hard Hat Light, Rechargeable Headlamp, 1200 Lumen, IPX7 Waterproof

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