In the Performance model the user buys hours of light or light per bicycle ride instead of the bicycle lamp. This is actually the ultimate access model where fulfilling the value for the user is more important than the product itself. This could be implemented in a system where there is a record of the amount of use of the bicycle lamp. Based on that, the user is charged for it. This would mean a lot of data and tracking to enable this system. A weak part would be during the summers when people do not need bicycle lamps that often, the profit will drop immediately.