Features:

SKU: Black Diamond Astro 300 Headlamp
Weight: 75g
Light Source: LED
Brightness: 300 lumens (Max)
Waterproof Level: IPX4
Battery: 3 x AAA (Included) or BD 1500 Li-ion rechargeable battery (Sold separately)
Usage Duration:

Small enough to bring just in case, but bright enough to light the way down unexpected rappels and dark trails
The new Astro 300 features an updated compact body that is more ergonomic, with a lower profile for better balance
The updated optical efficiency not only provides brighter light at 300 lumens, but also saves battery life
The Astro's dimming and strobe modes let you customize the lighting to your needs, and the highly weather-resistant housing shrugs off rain and snow
Compact, low-profile design uses three AAA batteries
Dual fuel, compatiable with BD 1500 Li-ion rechargeable battery (sold seperately)
Settings include full strength, dimming and strobe
Brightness Memory allows you to turn the light on and off at a chosen brightness without reverting back to full power
Stormproof: withstands rain and sleet from any angle (IPX 4)
Digital lockout feature safeguards against accidental use when stored in a pack or pocket
Best suited for hiking, camping and travel