Features: This aquarium heater features intelligent temperature control technology to automatically maintain a stable water temperature, preventing health risks for sensitive fish species by eliminating harmful temperature fluctuations. Built with glass, this heater offer superior pressure resistance, ensuring long term performances in watr environments compared to plastic alternatives. Ideal for novice and various users, this heater provides easy operations through its clear temperature display and energy efficient design for easy aquarium management. Suitable for home aquariums, office fish tanks, or any setting requiring unattended operations, it ensures safety with IPX8 waterproof standards for all day use. Combining precise temperature monitoring with low power consumption, this automatic temperature control device supports a sustainable lifestyle while enhancing the comfort of your fish pets. Specifications: Component: Glass Cable Length: Approx. 90cm/ 3ft Type: 25W/50W/100W/200W/300W Type: 2 Option Quantity: 1 Pc Package Includes: 1x Aquarium Automatic Constant Temperature Heating Rod note: 1: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2: Due to the difference between different monitors, the picture may not reflect the actual color of the item.