General description The 120L 100W Adjustable Aquarium Heater is designed for both freshwater and saltwater aquariums, suitable for tanks ranging from 60 to 120 liters. This fully submersible and waterproof heater ensures precise temperature maintenance, providing a safe and comfortable environment for your fish. Technical specifications Power: 100W Dimensions: 230mm x 25mm Temperature range: 20°C to 34°C (68°F to 93°F) Material: 2mm thick quartz glass IP68 wash-resistant Installation Easy to install with 2 strong suction cups Can be positioned at any angle, fully submerging the heater in water Usage Adjust the desired temperature using the knob on the top Equipped with a built-in thermostat that maintains water temperature within +/- 2°C Features an "ON" indicator light to show operational status Turn off the power ten minutes before changing aquarium water Other information Explosion-proof and double-sealed components for enhanced durability Intelligent constant-temperature heating