We left the Princeton Tec EOS out of our recent headlamp roundup because it just barley over-stepped our (admittedly somewhat arbitrary) weight standard of 3 oz or less. But with lithium AAA batteries, the 1 watt light reportedly weighs in at a mere 3.3 oz, and its performance definitely recommends itself to lightweight backpackers. To wit: A single 1 watt LED bulb, three brightness settings (plus emergency flash mode), large and easy-to-use button, and a tiltable, waterproof housing. Weight: 3.7 oz with alkaline AAA batteries, or 3.3 with lithiums. Battery life: 6.5-60 hours.
Princeton Tec EOS headlamp [Princeton Tec]
EOS headlamp reviews [BackpackGearTest.org]
EOS headlamp review [Backpacking Light, sub. req.]
