CustomDUO modules

Omni v5 Specification 


Omni v5 (discontinued)

  • Will work with any original pre 2018 Petzl Duo - the Cavers Duo!
  • 4 regulated light settings (user configurable)
  • 620 lumen maximum output (combined spot 310 lumen and flood 310 lumen)
  • Twin high power s5 XP-G3 LEDs (172 lumen @ 350mA @ 85 degC) 5000k neutral cool tint
  • Smooth spot optic for distant focus, and flood LED with efficient optic
  • LEDs operated separately or blended together
  • User defined power combinations to best suits your individual requirements
  • Low power moon setting, and battery charge indication 
  • Super robust circuit architecture.
  • Custom heat sink, and discreet thermal management
  • Simple push fit directly into existing Petzl Duo pilot bulb connection, see Fitting Guide 
  • No power drain on batteries when lamp is switched off
  • Progressive dimming at end of battery charge (will not just shut off when batteries are flat)
  • 6.0 volt maximum input (4x AA batteries)


The Omni v5 has four factory default power settings (see following table). Setting 1 is fixed. Settings 2, 3 and 4 can be user configured, or just left alone. To switch between the four light output levels, use the down switch on the Petzl Duo. Switch on-off-on-off to move between settings 1-2-3-4 ... 1-2 etc, in a looping sequence. 


For further information about performance and operaton, including how to program and configure settings, see Omni v5 Operation 


The widely acclaimed Duo Omni is our most effective LED conversion for the Petzl Duo, with user programmable light settings up to 620 lumen. The spot and flood LEDs can be operated separately, or blended together, to best suit your individual needs. 




Factory Setting

Spot LED

Flood LED




(est. using 2500mAh

1 (fixed)



73 lumen

16 hours

2 (programmable)



172 lumen

7 hours

3 (programmable)



245 lumen

5 hours

4 (programmable)



310 lumen

3.5 hours




5 lumen

includes battery
level indicator



New version v42 now available