Alldaymall F-495 Wf-502B Cree R5 Single - Mode 300 Lumen Red Light Hunting LED Flashlight Red filters does the best job of protecting your vision Common uses: stargazing, hunting with a night vision scope, or military operations It could still be used during the day for signaling, reading maps, and other tasks Sturdy and durable, output bright can come to 300 lumens Power by: 1 x 18650 Rechargeable Li-Ion Battery (not included)