Boxtech Aquarium Heater 50W, Submersible Fish Tank Thermostat Proof Explosion And Auto Digital Control, With Heat-Resistant Quartz Made For 5-15 Gallon

Fish Tank Thermostat: 50W aquarium heaters suit for 5-15 Gallon fish tank. Voltage:110V Power cord is 4.59ft Max deep water immersion 20 inch/1.7 FT Fully Automatic Control: Design with External Temperature Controller Temperature Range is 68 ºF-90 ºF when water temperature achieve the setting temperature heater will automatically stop heating when water temperature is lower than the setting temperature heater will automatically start heating Quartz Tube Safety Protection: Made of heat-resistant milky quartz Glass and UL-Approved Power Cord Controller IPX4 Heater IPX8 that make it pretty shatter-proof and Explosion-proof and prevents electricity leakage service life can be 3 years or more Correct installation: Stick the heater vertical onto the tank side near the water intake or on the way of water flow.(This way the heater can quickly sense the water temperature and make adjustments automatically) Keep the aquarium heater fully submerged in water Notice Please: Before you clean the aquarium or change water pls must cut off the heater power after 10 minute cooling then take out the heater and regularly clean the scale on the heater