Red light against deteriorating eyesightRegular "light shower" counteracts age-related retinal fatigueSuch an LED flashlight with red light of 670 nanometers wavelength can possibly counteractthe deterioration of visual performance in old age. University College LondonPortable infrared blood vessel flashlightSpecifications:Product name: Red light flashlightMaterial: Aluminum AlloyColor: BlackWavelength: 665-670nmSize: 96*28mmLight Color: one mode red lightsPower by: 3X AAA battery (not included)Skid-proof design & waterproof design.Package Included:1 X Red Flashlight Battery not included
Fruugo United Kingdom