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Black Diamond
Astro 300 Headlamp

4.782608695652174 out of 5 stars
23 Reviews



Why We Like The Black Diamond Astro 300 Headlamp

With a lineup as versatile as Black Diamond's, it's no surprise they'd design a headlamp that plays in as many sports as we do. The Astro 300 Headlamp is a simple, lightweight, and ultra-versatile light source for early-morning tours, late-night climbs, and every camping trip in between. Three brightness settings allow us to limit sight damage or maximize visibility for the adventure ahead.


  • Mixed-use headlamp built for every adventure
  • LED bulb with three brightness settings for various conditions
  • Water-resistant design stays active in undesirable weather
  • AAA batteries included for out-of-the-box readiness
  • Compatible Black Diamond rechargeable battery sold separately
  • Item #BLDZ9L0
Power Source
AAA Alkaline batteries (included), BD 1500 mAH rechargeable lithium-ion battery (sold separately)
Batteries Included
3 AAA Alkaline
brightness memory, low, medium, high, strobe
[low] 6, [medium] 150, [high] 300
[low] 8m, [medium] 35m, [high] 55m
Burn Time
[low] 140h, [medium] 8h, [high] 4h
Astro 300 Headlamp, 3 AAA Alkaline batteries
4 x 3 x 2in
Claimed Weight
[with AAA batteries] 2.65oz
Manufacturer Warranty
limited 3 years
climb, hike & camp, road running, trail running, backcountry skiing, backcountry snowboarding

Overall Rating

5 based on 23 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 0 reviews
4 Stars - 5 reviews
5 Stars - 18 reviews

What do you think about this product?


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5 out of 5 stars

April 17, 2024

Very satisfied!

Love this headlamp, exactly as I expected. Not too heavy. Would recommend!

Clemence D.

Originally reviewed on

4 out of 5 stars

December 8, 2023

Perfect for early morning assents

Perfect for early morning assents and working in tight spaces

Vinson J.

Originally reviewed on

4 out of 5 stars

November 21, 2023

The design of the Astro

The design of the Astro is really nice and the different settings are very fun to switch through. The weight is really good and the band is able to tighten enough that it doesn't move around on my head when I run.

Seth H.

Originally reviewed on

4 out of 5 stars

November 18, 2023

Just the basics

A lamp that any neophyte could operate. It’s my second. Paired with the rechargeable fuel cell, it’s a win. I just wish it had a red light option, a nice addition for those of us who prefer to wake up to a less intense beam.

Andrew L.

Originally reviewed on

5 out of 5 stars

November 18, 2023

Awesome light! Bought two of

Awesome light! Bought two of these for my kids for our deer camp and they far exceeded my expectations for the price!

Ricardo O.

Originally reviewed on

5 out of 5 stars

November 9, 2023

Great headlamp for the price

Got my young daughter headlamp. Great headlamp for the price. I like that it’s battery operated

Adam T.

Originally reviewed on

5 out of 5 stars

July 23, 2023

Light weight, Simple.

I was looking for a light and simple product and I just thought that it was appropriate.There is one button, and the adjustment of the headband size is intuitive. In particular, I like that the headband is detachable and washable.

user image
Wonsuk C.

Originally reviewed on

5 out of 5 stars

March 8, 2023

Perfect affordable light

I picked up this headlamp the other day. It simple, bright, brightness adjustability and it has a lockout function. What more can you ask for! I purchases to be a back up to my higher end BD headlamp because it always seams like I don’t have it when I need it the most, especially in my car. This is perfect affordable light to throw in your pack or vehicle for emergency situations without sacrificing on performance!!!

Dane P.

Originally reviewed on

5 out of 5 stars

March 6, 2023

Affordable and Reliable

We keep this particular Headlamp in vehicles and camping trailers as a backup. More then once, they have come in handy!

norman d.

Originally reviewed on

5 out of 5 stars

February 17, 2023

Reliable, simple to use and bright!

In a world of complicated designs and the battle for who has the most lumens, I just wanted a simple and reliable headlamp. The Astro doesn't disappoint. The strap is comfortable, even with 3 AAA batteries installed. The fact it is rain and storm proof is great for backcountry adventures, as well as the "lock" to make sure it doesn't accidentally turn on in your pocket or pack. 300 max lumens is more than enough for most backcountry adventures. There is also an option for a rechargeable lithium Ion battery from BD. For an inexpensive and reliable headlamp with BD quality, you can't beat this headlamp.


Originally reviewed on