Simply place the hens in a sunny part of the garden and with their intergrated solar panel they willl charge throughout the day and switch on automatically at night because the hens have a super bright led they cast beautiful projections on the ground around themr r featuresr 2 hens included hen dimensions 28cm height x 28cm width and 29cm x 29cm decorative lighting ideal for tabletops gardens patios or decks automatically illuminates at dusk up to 8 hours of operating time onoff sw