Diameter: 2 inches Promoting underwater supplemental oxygen White color LED light It fits for most aquariums, fish tanks, pools and other similar occasions Package: Round Bubbling Stone Disk Air Pump is included Note: include the bubble air pump and the hose. * Beautiful Appearance. * Energy Efficient and Long Service Life. * Safety for Inputting External Transformer and Low Voltage Little. * Low Power and Energy Saving for LED. A/C 220-240V-50 MHZ ** Note :- Need Expernal Air motor Pump to get air bubbles ( Not Included )