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A compact, ultralight, and reliable power source.

With its compact size and ultralight weight of just a single ounce, the Black Diamond Ion Headlamp is perfect to stash in your glove box, backpack, or pocket. The Ion can cast a beam 22 meters long on the high setting, and the IPX4 water-resistant rating means a surprise rain shower won't leave you stranded in the dark.

  • One SinglePower LED bulb emits 12 lumens
  • Ion can throw a beam 22 meters into the darkness on the highest setting
  • Runs on a single 6-volt battery (included)
  • High setting has an 8-hour burn time, low setting has a 15-hour burn time
  • Single switch allows you to select settings and turn the light on or off
  • Adjustable headband allows for hands-free lighting
  • IPX4 water-resistant rating protects against splashed water from any direction
  • Compact size and ultralight 1-ounce weight allows you to take the Ion anywhere

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Here's what others have to say...

2 5


  • Familiarity: I've used it once or twice and have initial impressions

Ordered 2 for the family: the backing on one (removed to access batteries) stuck to the main housing in a very tenuous way--would have required tape for confidence. The slideon/off mechanism was inconsistent on the other, even though the idea is great.

2 5

touch sensitivity & quality aren't good

  • Gender: Male
  • Familiarity: I've used it several times

Sometimes sensor is unpredictable and difficult to operate, even without gloves.

There is a bad contact with batteries in my device -- fixed with pliers.

I have cracked front lens easily while light stored in my backpack belt pocket and i don't know how (see photo).

touch sensitivity & quality aren't good
Responded on

Maybe the lens is not cracked. Mine looks similar.

2 5

Doesn't work with gloves

I think Black Diamond out-thought themselves here. The swipe-on touchscreen instead of a physical button means it won't work with gloves on, just like your smartphone. So if you're never in cold weather then go for it. Otherwise great little lightweight headlamp.

See the Design Process

Black Diamond put together a great video to better understand the features and construction of the Ion headlamp.

5 5

Great emergency lamp. Light and compact

  • Familiarity: I've put it through the wringer

The Ion is a perfect lamp to put in the bottom of your zippered pouch on your chalkbag or in your pocket. At 1 oz the Ion doesn't weigh much or take up a lot of bulk. It is a lamp I take with me and quickly forget about until it is needed. The Ion has saved me multiple times on routes that took a little longer than planned. The light is enough to walk or rappel with in my opinion.

The battery looks like an odd size but replacements can be found at most grocery stores if needed.

I recommend putting one in your climbing kit and when the time comes to use it I think you?ll be psyched!

4 5

Ounce Saver

  • Familiarity: I've used it several times

This lamp is a great answer to those looking to save weight! I use this around the campsite. It provides plenty of light for finishing up cooking, setting up the tent, and cleaning up. It is not for night hiking. Not bright enough. I have used it on one battery for approximately 8 hours. I'm not sure how much is left.

Responded on

i've used this many times in the last 2 years. I replaced battery after about 24 hours total run time.

2 5

Not for me

I had one of these, but for me, it just wasn't bright enough, and the battery drained really fast. I know it is meant to be ultralight, but I would rather carry a few more ounces in order to have a bright, long-lasting beam.