How do you use it for eyesight improvement. how close to my eye do i hold it? do i look right into it?

If you go online, you will find articles that address this question and tell/show you what to do. I look right into it, and others I've discussed this with online do also. Between 8-9AM, and for me I do it 3X a week, I do each eye for 3 minutes. I have only used it a short time, so I can't give a report yet, but It does feel good to do it.

Can the brightness level be adjusted? I'm concerned that this light may be too bright to look at.

The brightness cannot be adjusted, but the farther away you hold it, the lower the energy at the target will be. You can also add a diffuser to reduce the energy. You can purchase a diffuser, or look into scotch tape or teflon tape as an option. Search "diffuser vs scotch tape" online.

How do i use this " torch-like tube" to "emit energy equivalent to 40 mW/cm2 or 4.8J/ cm2 for 2 min" ???

1.21 Jigga watts in a tri-phase capacitor, with a velocity at 88 mph. See you in the future! The answer is 42!

This gets really hot. It has only been on a few minutes. I can hardly hold it. Is this normal?

The previous version of the flashlight occasionally had this issue. Our new updated model does not get hot. Please message us and we will send you the new version.

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Description

🔴 Illuminate your wellness routine with precision power!

DUAL BRIGHTNESS MODES - Switch effortlessly between 8mW/cm² low and 40mW/cm² high intensity for tailored sessions.
ULTRA PORTABLE DESIGN - Lightweight and pocket-sized for seamless integration into your busy lifestyle.
EYE FRIENDLY RED LIGHT - Zero blue light spectrum protects your eyes while delivering deep red therapy.
LAB VERIFIED PRECISION - Peak wavelength accuracy within ±5nm ensures trusted therapeutic benefits.
VERSATILE WELLNESS TOOL - Perfect for preserving night vision, reducing blue light exposure, and targeted 670nm applications.

The Eagle670 670nm Deep Red Light Flashlight delivers lab-verified, high-quality 670nm wavelength light therapy with dual intensity settings (8mW/cm² and 40mW/cm²). Its compact, lightweight design includes a foam spacer for optimal 3-inch distance use, making it ideal for personal wellness, night vision preservation, and blue light reduction. Battery-powered and crafted with precision, this device offers a safe, eye-friendly red light experience without harmful blue spectrum exposure.

Specifications

Special Feature	670nm Red Light Therapy, 8mW/cm2 on Low, 40mW/cm2 on High, New and Improved Version!, USA LABORATORY VERIFIED ACCURACY
Colour	Red
Power Source	Battery Powered
Light Source Type	LED
Material	Aluminium
Included Components	Foam Tube Spacer
Product Dimensions	94D x 25W x 25H Millimeters
Voltage	4.5 Volts (DC)
Battery Cell Composition	Alkaline
Item Weight	0.09 Pounds
Number of Batteries	3 AAA batteries required.
Water Resistance Level	Not Water Resistant
Brand	Eagle670
Brightness	40 mW/cm2
Battery Description	3 AAA batteries
Style	Compact
Bulb Base	GX53
Finish Type	Red
Specification Met	true
Mounting Type	Handheld
Recommended Uses For Product	Preserving night vision, Reducing blue light exposure, General 670nm light application
Manufacturer	Eagle670
Part Number	A670NMFLASH2
Number of Items	1
Finish types	Red
Number of Lights	1
Special Features	670nm Red Light Therapy, 8mW/cm2 on Low, 40mW/cm2 on High, New and Improved Version!, USA LABORATORY VERIFIED ACCURACY
Batteries Included	No
Batteries Required	Yes
Wattage	121.5 Milliwatts
Colour Temperature	1000 Kelvin
Colour Rendering Index (CRI)	19.00

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