USB rechargeable light that grabs onto pockets, hats or clipboards for hands-free lighting Features a white LED and a red LED; the red LED preserves night vision; LED for white light; high 70 lumens, runs 3.5 hours, 500 candelas; low 10 lumens, runs 24 hours, 50 candelas; Red LED perserves night vision; high 0.5 lumens. Runs 16 hours, 9 candelas; low 0.2 lumens, runs 65 hours, 3 candelas preserves