Might be useful to anybody wanting to upgrade an old petzl duo, available for free or a donation to CRO if you're feeling generous.

CustomDuo Geko spot v2 (285 lm) details here: http://www.customduo.co.uk/Gecko-spot-v2-discontinued/
Petzl Modu'LED 14 insert

Both in working order but as my Duo is broken I have no use for them any more. If you happen to want a spare face plate you can take that too!

Well I've got to say I've a Petzl fixe duo helmet with a halogen bulb so I would happily take the lens and Custom Duo insert of you for a donation to CRO.

However what's wrong with the Duo? Can it not be repaired?

ib

Consider it yours, I'll send you a message about delivery.

The connection into the battery box failed which is generally hard to repair, as a result I ended up cutting the cable to get it off the helmet so it now truly is dead.