Here's what other sites are saying:
The EOS is optimal for both localized needs and spotting at a distance. The combination of a Maxbright 1 watt LED and 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. Weight: 3.7 oz.
- Mountains Plus
The combination of a one-watt Maxbright LED and Princeton Tec's proprietary optics offers unprecedented brightness and beam smoothness in an ultralight, 3-AAA platform. The Princeton Tec Eos II headlamp is optimal for both localized needs and spotting at a distance. The Eos II is equipped with three brightness levels and a blinking emergency/signaling mode and is ready for adventure with its impact-resistant design. Industrial version of EOS.