Woliver Submersible Aquarium Heater - 200W, 300W, 500W, 800W Fast Heating with External Temperature Controller - Ideal for 26-211 Gallon Freshwater and Saltwater Tanks Review

🔥【Fish Tank Heater】:Voltage 110-120V/60HZ ,fish tank heater cable length 5.57+2.3ft ,300W submersible aquarium heater suit for fish tank 39-79 gallon freshwater and saltwater aquariums. 🔥【Temperature Range Scale】:Compact underwater analog fish tank heater can be adjusted between 57°F~95°F (±1°F). Maintain constant and stable temperatures for your aquatic creatures. 🔥【Auto Shut Off When Overheating or Leaving the Water】:When the water temp was over 95°F,the controller will auto shut off to prevent overheating,When the heater have not fully submerged the water,the heater display will come up "E1",and stop heating and will automatically restart heating after you place the heater fully under water. 🔥【Automatic Smart Thermostat & Dual Digital Display Heater】:The fish tank heater is very easy to set.The Heater will be stop heating when the water temp reaches to set temp. And it will restart heating when the water temp is 1°F (1°C) lower than the set temp. The aquarium heater have dual digital display temp,you can clearly to see the set temp and real water temp. 🔥🔥🔥【PLEASE NOTE:】 Uncontrollable weather may cause the heating tube to fail to heat up.Especially in winter, Affected by the outdoor environment and temperature, we cannot guarantee that the heating speed of the tank heater is the same as that of the indoor. And if the outdoor temperature changes greatly, the aquarium heater cannot be heated all at once, which may cause your fish freeze to face death outside due to not being heated in time.We don't recommend that you use it in outdoor pond.