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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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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670nm Red Light Therapy LED Light | USA Lab Verified 670nm Flashlight w/Spacing Tube | Red Light 670 nanometers | Lightweight and Pocket-Sized v. 3.0 by Eagle670

Product ID: 435661419

Details

Color
Blue / Red
Light Source Type
LED
Material
Aluminum
Power Source
Battery
Special Feature
Led Light

🔴670nm peak wavelength ±5nm

🪶Ultra-light 1.44 oz portable

🛠️Lab-verified precision

Description

🔴 Illuminate your wellness with precision and portability!

BLUE LIGHT FREE - Pure deep red light with zero harmful blue spectrum, protecting your eyes while enhancing results.
POCKET SIZED POWERHOUSE - Compact and featherlight design lets you carry professional-grade therapy anywhere, anytime.
QUICK 3 MINUTE SESSIONS - Designed for efficient use with a recommended runtime that fits your busy lifestyle.
FOAM SPACING TUBE INCLUDED - Ensures optimal distance for consistent and safe light exposure every session.
CLINICALLY VERIFIED PRECISION - USA lab-tested to deliver a true 670nm wavelength for maximum red light therapy efficacy.

The Eagle670 670 nm Deep Red LED Light is a USA laboratory-verified, ultra-compact handheld device delivering precise 670nm wavelength red light therapy. Lightweight at just 1.44 ounces and equipped with a foam spacing tube, it ensures safe, blue-light-free sessions optimized for personal health and eye safety. Powered by 3 AAA batteries, it offers quick 3-minute therapy intervals, perfect for on-the-go professionals seeking scientifically backed wellness tools.

Specifications

ASIN	B09W7STXQJ
Additional Features	Led Light,Lightweight,Portable
Battery Description	3 AAA batteries
Battery Type	Alkaline
Best Sellers Rank	#335,264 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2,711 in Handheld Flashlights
Brand Name	Eagle670
Bulb Base	GX53
Bulb Shape Size	S6
Color	Blue / Red
Color Temperature	1000 Kelvin
Customer Reviews	3.9 3.9 out of 5 stars (151)
Finish Types	Red
Included Components	Foam Tube Spacer
Item Dimensions D x W x H	3.35"D x 1"W x 1"H
Item Type Name	LED Flashlight
Item Weight	1.44 ounces
Light Path Distance	3 inches
Light Source Special Features	Red Light Therapy, USA Laboratory Verified Accuracy, Foam Spacing Tube
Light Source Type	LED
Manufacturer	Eagle670
Manufacturer Part Number	A670NMFLASH2
Material Type	Aluminum
Model Number	A670NMFLASH2
Mounting Type	Handheld
Number of Batteries	3 AAA batteries required.
Number of Items	1
Number of Light Sources	1
Number of Packs	1
Power Source	Battery Powered
Recommended Uses For Product	Personal red light therapy, preserving night vision, reducing blue light exposure
Runtime	3 minutes
Set Name	Eagle670
Shape	Cylindrical
Specification Met	true
Style Name	Compact
UPC	195893150861
Unit Count	1 Count
Water Resistance Level	Not Water Resistant

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