o lllumination after full charge (up to 72 hours flashing, 48 hours steady) r Illumination Mode: flashing (approx. I Hz) or steady r Visible Distance: over 1000 ft. (300 m). Compressive Strength: over 22000lb. (10 ton) r Waterproof rating: IP68 o Working Temperature Range: -4o F to 158'F (-20" C to +70'C) o Recommended Application: edge line.