Suppress harmful bacteria in waterPrevent bacterial growth algae growth.Keep the water clearIndependent switch is perfect for safer use.Due to UV radiation, the DNA of the microorganism is destroyed its reproductive ability is lost, most of the bacteria algae in the water are killed, thus, the healthy water.Made of high quality materials, more durableThe tail is made of insulating material to make it waterproof more secure. The multi-stage sealing ring can be used for diving.The scope of application is not only fish tanks, but also rock garden fountains, fish ponds aquaculture.Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy so on.specifications::13 WVoltage: 110\/220 VColour:BlackMaterial:ABS and QuartzPackage Contents:1 Aquarium germicidal lamp2 Suction Cup1 EUplug1 Use ManualNote:1. This product can emit effective UV rays. UV rays have certain damage to the human body. Please do not pay attention to it through eyes. Direct radiation injures peoples eyes skin. It is prohibited to directly irradiate organisms.2. The disinfection lamp can only be used in the filter tank, cannot be used directly in the fish tank, otherwise the fish will be injured or died due to long-term uv radiation Only the above package content, other products are not included.Note: Light different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is and\/- 1-3cm.