ERAARK 50W 100W Small Submersible Aquarium Heater, Constant Temperature 77℉, Betta Fish Tank Heater Suitable for Saltwater and Freshwater, 5/10/20 Gallon Fish Tahk (50W)

ERAARK constant temperature aquarium heater keeps your aquarium water temperature at 77°F, providing the right water temperature environment for most aquatic life; In addition, the product is equipped with dual temperature control and off-water power function to provide multiple security guarantees for your aquarium, ensuring that your aquarium life can live safely and comfortably

ERAARK 50W 100W fish tank heater is suitable for 5/10/15/20 gallon fish tanks; This heater can be used for saltwater and freshwater aquariums, which is pretty shatter-proof and blast-proof and prevents electricity leakage; Constant temperature of 77°F, Upgrade the chip, the accuracy is ±1°F; Voltage: 120V~60Hz

Safe and Durable: PC and PPA material, high temperature resistance; Quartz heating tube, corrosion resistance, high stability; Copper wire power cord, wear-resistant; Insulated plug, Safe and durable; Built-in overheating protection device, when overheating or out of water, the heater will automatically power off immediately to protect your fish from harm

Easy To Install: There are two suction cups, and you can hang the heating rod vertically or horizontally on the fish tank; Place heater inside the aquarium and keeps it fully submerged

Note: When the heater indicator light is orange, it indicates that the heater is heating; When the heater indicator light is green, it means that the water temperature is higher than 77°F, and the heater stops heating, but note that the heater itself still has residual heat; When the indicator light of the heater blinks orange, it means that the heater is out of water; Please adjust the position of the heater in time or make water refill