To decorate your aquarium in Multi-color Slow Flash multiple colorTotally sealed design for underwater workEnergy conservation and environmental protection.Safety low-voltage designEasy operationProduct DescriptionNote:1. Indoor use only. Please keep the power adapter and joint away from water.2. Air pump is not includedFeatures:- Can connect to air pump for air bubble billow effect.(Air pump not included)- Excellent sealed design， can be fully submerged in water.- Fill with stone， sit at the bottom of tank steady.- Energy saving， low heat， long-lastingApplication:Pocket size，fixes most aquariums，fish tanks，pools and other similar occasions.Specifications:- LED color:Multi color- Light source:12Pcs LEDs- Voltage: 100-240V- Output: 12v- Waterproof Rate: IP68- Diameter: 106mm/4.17inch- Height: 19mm/0.75inch- Cable Length: approx 3000mm(there may be a 10~20mm error)- Air tube Length: approx 1550mmHow to Install:1. Check whether the light is broken or there are any cracks. If not， then follow the steps below.2. Test the light before putting it into fishbowl. Plug the slot into socket， and switch on. If all the LEDs are working， then it is normal.3. Clean the surface that is used for fixing the sucker of the light.4. Connect transform and turn on the switch.Package Include:1 X 12 LED Round Bubble Light1 X Air tube1 X Sucker1 X 12V DC adpter (US/EU/UK/AU Plug)