Hi, Dear little angel, welcome to Jacenvly, our products are cheap and good quality, price is fair, you can't miss it. If this product is not your style, please click on our store, we have many kinds of products, there will be you like and suits you. If you have any questions about your purchase, please send us the first message, we offer world class customer service to make your purchase without your worries. Have a nice day. Fish Tank Heating Rod Aquarium Automatic Constant Temperature Heating Rod Turtle Heating Rod Constant Temperature Rod European And American Regulations Features: 【Applicable scene】Suitable for tanks, ocean tanks, coral tanks, turtle tanks, and hydroponics. Make your pet healthier. 【quality material】: Explosion-proof quartz glass, no deformation or softening, multi-layer sealing, and no leakage; strong double suction cup , which can firmly fix the heater in every corner of the fish tank. The internal is updated and upgraded, and the ceramic heating body is used, which has low resistance, faster temperature , and more power saving; 3C power cord, power plug, and authoritative certification are safer. 【Quick heating/intelligent temperature control】: Step heating, the fastest heating is 5 seconds. The automatic constant temperature function automatically reduces the power when approaching the set temperature, making full use of thermal to the set temperature smoothly and save energy. When the water temperature is lower than the set temperature, the heater will automatically start heating. In addition, automatic shutdown function and overheating protection. 【Easy to use】Easy to install, 2 strong suction cups can be installed at any angle, just make sure it is completely underwater, the heating rod must be completely immersed in the water, and finally power on. 【Note】: 1. The aquarium heater is for diving use. During heating, the heater must be submerged in water. Unplug when cleaning or changing the water in the aquarium. 2. The heating rod is suitable for people over 16 years old. Children or minors should be under the guidance or supervision of an adult. Product Description: Product Description: ★【Intelligent temperature control】： Automatic constant temperature function, when water temperature reaches to specified temperature value, heater will automatically stop heating, when water temperature is lower than the set temperature, heater will automatically start heating. Furthermore, Automatic shut-off feature, and overheating protection. Power supply and tank: 20W-300w heater Heater length: as shown The package includes: 1x aquarium heater 1x protective case Features: 【Applicable scene】Suitable for tanks, ocean tanks, coral tanks, turtle tanks, and hydroponics. Make your pet healthier. 【quality material】: Explosion-proof quartz glass, no deformation or softening, multi-layer sealing, and no leakage; strong double suction cup , which can firmly fix the heater in every corner of the fish tank. The internal is updated and upgraded, and the ceramic heating body is used, which has low resistance, faster temperature , and more power saving; 3C power cord, power plug, and authoritative certification are safer. 【Quick heating/intelligent temperature control】: Step heating, the fastest heating is 5 seconds. The automatic constant temperature function automatically reduces the power when approaching the set temperature, making full use of thermal to the set temperature smoothly and save energy. When the water temperature is lower than the set temperature, the heater will automatically start heating. In addition, automatic shutdown function and overheating protection. 【Easy to use】Easy to install, 2 strong suction cups can be installed at any angle, just make sure it is completely underwater, the heating rod must be completely immersed in the water, and finally power on.