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Closed    .....    14th Feb 2019 to 25th Feb 2019 

CustomDuo modules 

CustomDUO Shop

Duo Omni v5

Our bench mark insert for the Petzl Duo, with 4 user configurable light settings. Spot and flood LEDs, up to 620 lumen.



Duo Omni 'Simple'

Simple, no frills version of the Omni module. 3 fixed level power settings, up to 340 lumen. Very effective. Another best seller.



Gecko v3 Spot

Cost effective, single LED spot modules, single power 310 lumen with thermal regulation .......... with Geckos !! 





Gecko Side

More efficient than standard Petzl Modu'led units. 4 regulated power settings. Single flood LED. Up to 170 lumen sustained, with turbo boost (thermally regulated) 310 lumen.  



Petzl Duo Fixo Screws

5 off large head fixing screws for helmet mounting Petzl Duo.



Gecko Side v3
Bargain Bazaar
Duo Omni v5

LED upgrades for Petzl Duo 

CustomDUO Shop 

The Online Shop allows payment with most debit and credit cards, without the requirement for a Paypal account. Add product to cart and option is offered at checkout. Customduo also accept UK cheque or bank transfer.  International orders welcome. We are currently shipping internationally (outside UK) at no extra postal charge. For more details please see delivery


Please note that we are a small manufacturing business. Officially we work Mon-Thurs (excluding public holidays). If closed for holidays etc we will provide notice on CustomDUO calendar.

We aim to despatch CustomDUO stock products within two working days, and generally the next working day. We make every effort to keep our on-line stock availability right up to date (and generally don't get caught napping). When placing an order, please ensure that your delivery details are correct, and also that your email address is current, so that we can keep you informed on order progress.


Before purchasing any Customduo product please ensure that you have read and accept the terms

Petzl Duo Oval Lens

Petzl Duo oval lens (Petzl Duo lamp front window). 




Petzl Duo front window

Petzl Duo Battery Holder 

Petzl Duo replacement battery holder and lid. 




Petzl Duo Battery Box
Gecko Side v3
Duo Omni 'Simple'