EOS Princeton Tec The EOS is optimal for both localized needs and spotting at a distance. The combination of a Luxeon 1 watt L.E.D./optimized lens/collimator maximizes the beam by balancing long throw with flood light. The self contained battery system eliminates external wires. The EOS is equipped with (3) brightness levels and a blinking signal mode. Batteries: 3 AAA. Bulb life: 10,000+ hours. Weight: 3.7 oz. with batteries. Waterproof to 1 meter. Burn time: 6.5 hrs (high), 12.5 hrs (med), 60 hrs (low). Power: 25 lumens.