4 ultrabright Nichia 5 mm LED's, 30% brighter than standard LED's. Current regulated for constant output. 4 output modes-hi, med, low and safety flash. Low battery indicator light. Waterproof to 1 meter for harsh conditions. Illuminates up to 37 m away. Power: 45 Lumens (3AAA). Burn time: 1 hour (high), 10 hours (medium), 31 hours (low). Weight: 3.4 oz.

Lightest headlamp in Princeton Tec's Professional Series, with four regulated Ultrabright LEDs shining wide, powerful beam

Sophisticated regulating circuit maintains initial brightness as long as batteries have sufficient voltage

Focused wide beams simulate normal daylight conditions and allow you to take advantage of peripheral vision

45 lumens of brightness via four Ultrabright LEDs; 105-hour burn time on three AAA batteries; 96-gram weight

UL Rating approved to Class I Division 2 Groups A, B, C & D Class II Division 2 Groups F & G; T4 UL temperature code