Package included: 1 x Aquarium Submersible UV Sterilizer Lamp 1 x Plastic Storage box Specification: 1.Power: 7W,9W,11W 2.Lamp size: 8.5x2.5cm 3.Cable length:150cm 4.Suit for Fish tank length:7W——≤90cm?9W——≤120cm?11W——≤200cm 5.Material:Silicone + Glass 6.Voltage: 220V 50-60Hz 7.Working Temperature Range: 5-50? 8.Plug:US Plug (We will send you an adapter according to your country) Features: 1.Using quartz glass?high transmittance 2.With suction cup, easy to install. 3.Small volume, with unique split switch design to make the product more secure. 4.Excellent waterproof performance and disassembly quite convenient. 5.Silicone waterproof head can withstand UV radiation more, and its soft materials will not break easily if it encounters a hard collision 6.The sterilization effect is excellent .Ultraviolet radiation reduces the production of bacteria, viruses and algae in water,to ensure that the fish tank water clear and bright,inhibit the growth and spread of fish bacteria 7.With a crush-proof ?fall-proof and dust-proof protective hard plastic box which allow you to carry or save your lamp better Note: 1.Please avoid direct contact with light, ultraviolet radiation is harmful to the skin 2.Please put it in the filtration system and let the water pass through the lamp.