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Swift RL 1100 Headlamp

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Why We Like The Petzl Swift RL 1100 Headlamp

When we're fighting for our life in the dark hours of an ultra, we appreciate the ultralight build and intelligent lighting of Petzl's Swift RL 1100 Headlamp. The Reactive Lighting tech auto adjusts to the conditions, giving us the illumination we need, while the Lock function ensures a brow wipe doesn't accidentally alter our settings. Whether we're pushing off our knees on steeps, making up time on flats, or scrambling along ridgelines, the split, ergonomic strap holds the light steady, and the IPX4 rating gives us confidence that the rain showers washing away our sweat won't turn off the lights. Equipped with a five-level gauge, the rechargeable, replaceable battery lets us know quickly at the aid station if we need to swap it out.


  • Ultralight, compact headlamp for your rigorous on-mountain pursuits
  • Tiltable head with 1100 lumens illuminates up to 155 meters away
  • Single button to change modes—Reactive, standard, mixed, red, strobe
  • Reactive Lighting tech auto adjusts brightness to your needs
  • IPX4 water-resistance rating for missions through rain and snow
  • Lock function prevents accidental on-button activation during transit
  • Reflective split strap construction increases visibility and stability
  • Included Shell LT storage pouch to use headlamp as a lantern
  • Item #PTZZ28U
Power Source
rechargeable lithium-ion 2350 mAh battery (USB-C port, 5-level charge indicator gauge)
Batteries Included
Reactive Lighting, standard lighting, mixed (wide and focused), red, red strobe
[Reactive Lighting] (max time) 18 - 100lm, (standard) 25 - 275lm, (max power) 30 - 1100lm, [standard lighting] (max time) 10lm, (standard) 160lm, (max power) 700lm, [continuous red] 3lm, [reserve] 10lm
[Reactive Lighting] (max time) 35m, (standard) 75m, (max power) 155m, [standard lighting] (max time) 12m, (standard) 50m, (max power) 115m, [red] (continuous) 5m, (strobe) 150m
Burn Time
[Reactive Lighting] (max time) 10 - 70h, (standard) 7 - 45h, (max power) 2 - 35h, [standard lighting] (max time) 100h, (standard) 7h, (max power) 2h, [red] (continuous) 60h, (strobe) 300h, [reserve] 2h
reflective, split construction
headlamp, battery, Shell LT storage pouch
Claimed Weight
mountaineering, trail running, ski mountaineering, backcountry skiing
Manufacturer Warranty
[headlamp] limited 5 year, [rechargeable battery] limited 2 year (or 300 charging cycles)

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