Feature: 1. PRECISE TEMPERATURE CONTROL: 800W aquarium heater accurately regulates the temperature of the fish tank water and maintains a stable temperature. 2. RAPID HEATING: Aquarium heater utilizes 220V‑240V 800W power to quickly heat up the aquarium water and is suitable for aquariums of all sizes. 3. INTELLIGENT ALARM PROTECTION: Fish tank heater is designed with an audible alarm that alerts you to take timely action in the event of an abnormal temperature to protect your fish. 4. SAFE AND RELIABLE: Fish tank heating rod is made of quartz glass, high temperature resistant and burst resistant, ensuring safe and reliable use for a long time. 5. EASY TO OPERATE: Submersible fish tank heater is easy to operate, plug and play, and is suitable for home use. Specification: Item Type: Aquarium Heater Material: Quartz, Glass Plug Type: CN Plug Cord Length: Approx. 1.5m / 4.9ft Power: 800W Applicable Fish Tank: 800L Voltage: 220V-240V Temperature Control Range: 15-32°C Tolerance Range: ±1°C. Package List: 1 x Aquarium Heater 2 x Double Sided Adhesive Note: 1. Dear customer, please rest assured to buy without worrying about the plug adaption. We will provide an adapter for you according to different country standard for ensuring its normal use.2. Please allow some error due to manual measurement.