They are tiny and emit very, very little light. I bought 50 and taped them to my team's paintball goggle straps during game nights so we could tell friend from foe. In the light of the full moon we still couldn't see each other's lights beyond 15 feet. We should have used a little more. Also "red" is more like purple.
π₯ Stay Prepared in Extreme Conditions: EVERLIT Emergency Reusable Kit - Ultimate Thermal Survival Gear
10 Review
High-Performance Arcturus Military Wool Blanket
12 Review
Foxelli Lightweight Hooded Rain Poncho: Ultimate Occupational Health & Safety Gear in Emergency Response Equipment
9 Review
π₯ Mylar Science Purchase: Your Ultimate Emergency Blankets
9 Review