Petzl DUO S vs DUO Z1 vs DUO Z2 Headlamps

Petzl’s DUO line of headlamps includes some of their latest technology including the ability to auto-dim the beams when people wearing a DUO face each other. Ideal for work! These are rugged headlamps with high shock and water resistance ratings, ideal for nasty environments.

The Petzl DUO Z1 has an Explosive Environment Certification for safety while working around natural gas and other explosives. The DUO Z2 takes standard AA batteries or rechargeables and gives a strong 430 lumens brightness. The DUO S has incredible battery life, ultra-bright settings, and cool technology.

Detailed Comparison of Petzl’s DUO Headlamps

Petzl DUO S, Z1, Z2 comparison on more than 25 features.
Shockproof, High Water Resistance, Cool Features. Is one of the DUO headlamps for YOU?

PETZL DUO S vs PETZL DUO Z1 vs PETZL DUO Z2 HEADLAMP

Comparison of three of the best headlamps, the Petzl DUO S, DUO Z1, and DUO Z2 based on more than 20 different features and functions.
FEATUREPETZL DUO SPETZL DUO Z1PETZL DUO Z2
Max sustained lumens700360430
Max Lumens Burst1100360430
Weight in Grams370370360
Battery TypeACCU 2 lithium ion proprietary rechargeableACCU 2 DUO Z1 lithium ion proprietary rechargeable4-AA Ni-Cad or Lithium rechargeable
Helmet MountingPRO ADAPT fits any helmet (accessory)VERTEX and STRATOVERTEX and STRATO
Battery Life at Max Lumens210 mins115 mins115 mins
Battery Recharge Time120 mins (on 220v)480+ mins4-AA batteries
Charging SourceA/C 110 or 220vA/C 110 or 220vn/a
Shockproofyesyesyes
WaterproofIP 67IP 67IP 67
Explosive Environment CertifiednoATEX Zone 1/21ATEX Zone 2/22
Extreme Temperature Range0° C to +40° C-20° C to +40° C-20° C to +40° C
Emergency Strobe or Red Lightnonono
Auto-Dimming Techyesyesyes
Bluetoothnonono
Spot Beamyesyesyes
Flood Beamyesyesyes
Mixed Beamyesyesyes
Campingyesyesyes
Cavingyesyesyes
Cyclingyesnono
Fishingyesyesyes
Hikingyesyesyes
Huntingyesyesyes
Runningyesyesyes
Skiingyesnono
ReviewHereComingComing
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Explosive Environment Note

The Z2 headlamp can be used in the indicated environment only with specific batteries below. Download the informative PDF on all of these headlamps at Petzl.com before using. Also, never open the battery case in an ATEX zone.

  • Energizer E91
  • Duracell MN1500
  • Duracell MX1500
  • NX Alkaline

Bottom Line

If you need a headlamp that is certified for explosive environments, you don’t want to choose something that some fly-by-night Chinese company put together. Petzl has been making great headlamps since the 1970’s. All of these lights are very high quality and you won’t be disappointed buying one.

The Petzl DUO S is in a class all its own. There is nothing like it on the market anywhere. This headlamp is the upgrade to the Petzl ULTRA RUSH which we absolutely loved (and still do). If we had the money, we’d have a couple of the DUO S models instead… they’re that good.

Buy with confidence. You won’t go wrong with Petzl.