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Head Lamp 425

3.7551020408163267 out of 5 stars
49 Reviews
Color:Ember Yellow



Why We Like The BioLite Head Lamp 425

BioLite's Head Lamp 425 provides the perfect balance of performance and weightlessness. Using their 3D SlimFit construction, BioLite creates a versatile and comfortable-to-wear headlamp that's ideal for late-night climbing and hiking, visibility while camping, or any adventure after dark. Two lamps increase both our range of sight and our ability to be seen.


  • Performance headlamp made for maximum comfort
  • 3D SlimFit construction sits flat, feels light, and wicks moisture
  • 425-lumen lighting provides up to 85 feet of visibility
  • Main bulb with white and red lights in flood, spot, and strobe modes
  • Second rear-facing bulb with red light for increased visibility
  • Rechargeable battery reduces waste and repowers lamp in 4 hours
  • Item #BIOB011
Power Source
1000 mAh lithium-ion, rechargeable
Batteries Included
rechargeable battery
white flood, red flood, white spot, red strobe, white strobe, rear red flood, rear red strobe
[flood] 15m, [spot] 85m
Burn Time
[low] 60hr, [high] 4hr
3D Slimfit
IPX4 (water-resistant)
BioLite Head Lamp 425, USB-C charging cable
Claimed Weight
Manufacturer Warranty
limited 1 year
climb, hike & camp

Overall Rating

4 based on 49 ratings

Review Summary

1 Stars - 7 reviews
2 Stars - 7 reviews
3 Stars - 4 reviews
4 Stars - 4 reviews
5 Stars - 27 reviews

What do you think about this product?


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2 out of 5 stars

February 14, 2024

Poor battery life. 👎🏻

The light fits really well my problem is customer service and the battery life. My light last about 35mins on flood only and half way between full bright and dim. Unfortunately I wouldn't recommend this light as the battery life is terrible.

Dustin D

Originally reviewed on

5 out of 5 stars

February 7, 2024

Best headlamp that I've owned!

I really like this headlamp for all of my needs (hiking, running, camping, BBQing, emergency prep). It has a powerful light and love that it is USB-C rechargeable, just like my other devices, so that I only need to carry one cable around. The pass-through charging is an AWESOME and pretty unique feature where I can directly connect my powerbank via USB-C AND still use my headlamp while shining light - so I never have to worry about running out of juice. Have really enjoyed the switch from AA batteries, which tended to oxidize on me over the years. Would definitely recommend and think that BioLite has some other really cool products for camping and emergency prep.


Originally reviewed on

3 out of 5 stars

February 6, 2024

Will return: Battery less than half of promise

I have used the 425 a few times from full now. I would estimate it lasts max 1/3 of the stated battery time. Extremely disappointing as it is quite comfortable. Another “con” not normally talked about is that you will likely see the tip of your nose lit up – the low profile of the headlamp leads to this, with Glasses I would guess this could be rather problematic.

Jon M

Originally reviewed on

5 out of 5 stars

January 28, 2024

Night Activities

I use this for random activities at night seeing everything perfectly, shoveling snow, walking dogs... This is amazing! I loved how it warns you multiple times before the light dims down. Love that I can just recharge and be ready for my next adventures! Thank you for this amazing product.


Originally reviewed on

1 out of 5 stars

January 25, 2024

Terrible Battery Life

I got this as a present and was excited to use it in the winter for skiing after work. I tried this headlamp several times at different settings and the battery would last about 30 minutes before it the light got very dim. I used this for a skimo race that started in the dark and not even half way through the race the battery was almost dead, I had to finish with no light, which was so dangerous. Maybe this battery is better when it is not cold, but I am not impressed.


Originally reviewed on

5 out of 5 stars

January 12, 2024

Good light, front and back

Very good bright lite. The rear light is helpful for night walks. The weight of the batteries is in the back, which is different than most lights, but you get used to it.


Originally reviewed on

5 out of 5 stars

January 12, 2024


I've been using this for climbing and working in little to no light. It's been a lifesaver. The battery last way longer than any other headlamp I own and the multiple settings allow me to work on things close up or in a larger field of view. Can not recommend enough!


Originally reviewed on

5 out of 5 stars

December 26, 2023

Excellent product

I had bought an older model of the headlamp, and loved it. Given the frequent outages in this area, and the death of my old battery-powered conventional headlamp, I treated myself to this one. It is significantly brighter, and lasts longer. Couldn't be happier


Originally reviewed on

5 out of 5 stars

December 18, 2023

Great Headlamp

Great Headlamp. I use it for kayak fishing Hawaii early in the AM where I need bigger boats to see me.


Originally reviewed on

1 out of 5 stars

December 14, 2023

I'm on my second 425 and about to return it

This is my second try on the 425. The first one only lasted 50 mins before going into power saving mode with 1 battery level light remaining (started with a full charge). The second is doing the exact same thing. The light advertises 4 hours on high so this is very disappointing. I gave it a second try because the light is so comfortable but I need it to last longer.


Originally reviewed on