This product is a new energy-efficient decorative lighting,widely used in fish tanks,cisterns,rockeries,pet cages and other. Blue or white light led bar can make your tank look like part of oceans,and your fish and reptiles seen where they are swimming or moving. Long service life, energy saving and environmental product LED lighting will not only increase the color of fish and algae but also make your fish tank or aquarium more beautiful. Entirely sealed design for underwater use Easy to install with 2 strong sucker Specification: Voltage: 110V-240V LED Type: 5050 Frequency: 50-60Hz Power cable length: approx 135cm PLUG: EU Plug LED Quantity: 9/ 15/ 21/ 27 Light Color: White/ Blue/ BlueWhite Overall length of lamp: 18cm/ 28cm/ 38cm/ 48cm Power: 2.5W/ 3W /4W/ 5W Package included: 1x LED aquarium submersible lamp 2 x suction pads