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<p>Small enough to forget you're carrying it, but bright enough to be useful. The latest generation of Astro has been updated with increased lumens and a digital lock to prevent it from turning on in your pocket. Its infinitely adjustable dimmer lets you dial in the perfect amount of light for reading a book before bed or making a pre-dawn cup of coffee.</p><ul><li>Mode memory remembers the last setting used and turns the light on in that setting</li><li>Smooth dimming feature lets you dial in the perfect brightness</li><li>Digital lock mode prevents it from turning on in your pack or pocket</li><li>IPX4 waterproofing shrugs off rain, sleet or snow</li><li>Compatible with 3 AAA batteries (included) or rechargeable BD 1500 Li-ion battery (sold separately)</li></ul>

Black Diamond Astro 300 Headlamp

The number of lighting levels/modes the light has (i.e., low, med, high, flash).

The total quantity of light emitted in every direction from a source of light; measured in lumens.

Beam pattern affects how much you can see within the area of light thrown from the headlamp. Wide beams are good for close-up; spot or focussed beams are good for long range visibility.

Indicates the degree of protection against liquid. IP X1: Dripping water while in normal operating orientation; IP X4: Splashing water; IP X5: Water jets; IP X6: Powerful water jets; IP X7: Immersion up to 1m ≤ 30 minutes; IP X8: Suitable for submersion as specified by manufacturer.

Rechargeable lights give you hassle-free recharging with almost any power source. Replaceable batteries provide instant power, but you’ll need to bring extra batteries, recycle used ones and buy new ones.

On regulated lights brightness is consistent, and does not decrease gradually as the batteries are drained.

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Black Diamond Astro 300 Headlamp

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