- Rugged all-aluminum construction with o-ring seals
- Ballpoint pen with black ink and replaceable cartridge
- End cap with pocket clip fits over light or over pen.
- Bright NichiaÂ® LED shines to 12 lumens with 8 hours battery life and 20m distance.
- High-intensity white LED is rated for 100,000 hours use
- Twist-switch for positive on & off
- Requires four LR41 batteries (included)