This aquarium light can be used both underwater and out of water. Just fix it by the sucker cup and pluged the adapter into wall socket and it will work to give bright light of 3 colors. No matter you are going to use it to fish tanks or pet cage, it will bring you convenience. Specifications: Voltage: 110-240V Powers: 1.8W LED quantity: 18pcs F5 leds Light length: 180mm/7.09in Light color: Blue/White/Red/Green/Warm (The 3 colors of it will be sent at random) Waterproofing grade: IP68 Adapter: 4 types (optional) Material: Glass & plastics Package Size: 2307550mm/9.062.951.97in Package Weight: 230g/ Note: We have different adapters for your option, please choose the right one that is applicable in your country. Blue/white/red/green/warm 5 colors leds light, the 3 colors of it will be sent at random. Packing list: 1Aquarium light 1Power adapter 1*User manual