UDTEE Brand New Submersible/Underwater UV Aquarium Fish Pond /Tank/ Lamp/Light/Bulb With High Sterilization Ability(S,M) Package included:1PCS medium size UV aqurium lamp. Made of excellent imported material and glass Safe and durable for long-term use(Can be used at lest for 8001 hours) Fully waterproofing,submersible,Suitable for any kinds of fish pond tank. Size:7W-16.3cm(length),fits aquarium less than 90cm high.