Here's how the guarantee works

OSRAM compact fluorescent lamps that fail to work properly as a result of a product defect in non-commercial applications during the specified period are

OSRAM compact fluorescent lamps that fail to work properly as a result of a product defect in non-commercial applications during the specified period are covered by the OSRAM guarantee. Please note: The guarantee applies only to countries with customer service addresses listed here.

To receive a replacement, please send the defective lamp in a protective package along with your cash register receipt to the OSRAM contact address in your area. Your statutory rights to non-defective goods remain unaffected.