Water resistant. Impact resistant. CREE XM-L2 LED. High (150 lumens, 10m runtime), Mid (30 lumens, 10h runtime), Low (10 lumens, 40h runtime). 55m beam distance. PMMA TIR lens with 90% light transmission rate. High mode runs for 10 minutes before brightness gradually steps down to 60% of original level. Two red LEDs. Four adjustable angle degrees available (10, 25, 35, 50). Blue nylon elastic head band. Requires 1 AAA battery (included). Color: Blue. Boxed with hanging tab.