Moondial is an authentic lunar globe which displays the Moon's phase in real time. Data from NASA’s Lunar Reconnaissance Orbiter helped generate the exceptionally detailed moon model, while the patent pending lighting system perpetually projects the lunar cycle in a precise and stunning fashion. Product Specifications -Overall dimensions: 7.7” x 9” x 6" (196mm x 230mm x 155mm) -Lunar Globe: ⌀6" (154mm) - 1:23 million scale -Table surface required: 7.7” x 4.3" (196mm x 110mm) -Materials: PLA resin, ABS plastic, electronic components -Power: 100-240V 50-60 Hz, 12V adapter supplied Features -Made with NASA data -Dimmable LED -99.99% timekeeping accuracy -Contains recyclable and biodegradable plastics -Patent pending design -No batteries required