The SOBO HS-50W is a professional glass aquarium heater featuring precise temperature control and durable construction. This 50-watt submersible heater maintains optimal water temperature between 20°C-32°C, making it ideal for tropical fish tanks and aquariums. Key features: • 50-watt heating capacity • Temperature range of 20°C-32°C • Fully submersible glass construction • Built-in thermostat for temperature control • Safety auto-shutoff protection • Easy-to-mount design • CE certified for safety standards The heater features a high-quality glass tube construction that ensures even heat distribution throughout the aquarium. The integrated thermostat maintains consistent water temperature, while the submersible design allows for optimal heat transfer. The unit includes mounting brackets for secure placement and is suitable for both freshwater and marine aquariums. For best performance, it's recommended to use a heater appropriate for your tank size - this 50W model is ideal for smaller to medium-sized aquariums.