Slightly larger than a quarter, this compact, ultra-bright white L.E.D. is really amazing! Simply squeeze the center and the waterproof Eclipse provides reliable light for any situation. Features five switch settings; High, Medium, Low, Slow blinking & Fast blinking. Hook it on your PFD, ball cap, dry bag or key chain for instant light! Includes additonal optional clip. Burn time = 12-16 hrs. Includes Lithium coin-cell battery. Weight: 0.3 oz