The revolutionary Stylus® combines the convenience of a penlight
with
the power of a high-intensity LED. With 100,000-hour LEDs, every Stylus
also comes standard with a powerful momentary-blink and constant-on
switch. Plus, the knurled, anodized-aluminum body ensures rugged,
corrosion-resistant operation. There's even a pocket clip to help keep
Stylus close, and it's waterproof to 100 feet. Each light uses three
AAAA alkaline batteries (included).