This battery fits directly into Petzl Hybrid Concept lights. It transforms your head lamp into a rechargeable one, but not permanently: you can still keep AAA batteries at hand for spares. This item cannot be delivered to countries outside of the European Union because of restrictions regarding batteries in airfreight. - Compatible with the following Petzl lights manufactured from 1-2017: - Iko - Iko Core - Tikkina - Tikka - Zipka - Actik - Actik Core - Tactikka - Tactikka+ - Tactikka+ RGB - Tactikka Core - Tikkina DIY - Tikka DIY - Zipka DIY - Tactikka+ DIY - Actik Core DIY - Not compatible with lights made before 1-2017, also not compatible with Petzl Reactik series lights