Hygger Mini Inline Quartz Glass Aquarium Heater with External Controller 50W

• [For Fish Tank 5-15 gallon]50W aquarium heater, voltage AC110-120V 60HZ, power cord is 4.6ft. Heater rod length is 5 inch, mini compact heater for small fish tank use. Perfect for betta tank. A very compact heater, easy to hide in the tank
• [Automatic Stop & Restart]Effectively maintain the tank water in the constant temp you set, stop heating when water temp reaches to the set temp and restart heating when the water temp is 1-2℉ below the set temp.The indicator light on the controller will be on red when it's heating, will be off when it stop heating
• [With Built-in Thermometer]you can set the the temp from 68℉ to 90℉,temp exactness is within 2 degrees in fahrenheit. There is a built-in thermometer in the heater to detect the water temp, not need to buy seperate thermometer
• [Durable Quartz Glass]this aquarium heater tube is heat-resistant quartz glass made, excellent in explosion-proof, can be used in fresh water and salt water aquariums, white alundum sand as the heat-conducting media, service life can be 3 years or more
• [Fully Submersible]this fish tank heater is waterproof, must be fully submerged in water when working, place it horizontally or vertically near the water intake or where the way of water flow

This design in power 100W:

• [For Fish Tank 10-30 gallon]100W aquarium heater, voltage AC110-120V 60HZ, power cord is 4.6ft. Heater rod length is 7 inch, mini compact heater for small fish tank use. Perfect for betta tank. A very compact heater, easy to hide in the tank
• [Automatic Stop & Restart]Effectively maintain the tank water in the constant temp you set, stop heating when water temp reaches to the set temp and restart heating when the water temp is 1-2℉ below the set temp.The indicator light on the controller will be on red when it's heating, will be off when it stop heating
• [With Built-in Thermometer]you can set the the temp from 68℉ to 90℉,temp exactness is within 2 degrees in fahrenheit. There is a built-in thermometer in the heater to detect the water temp, not need to buy seperate thermometer
• [Durable Quartz Glass]this aquarium heater tube is heat-resistant quartz glass made, excellent in explosion-proof, can be used in fresh water and salt water aquariums, white alundum sand as the heat-conducting media, service life can be 3 years or more
• [Fully Submersible]this fish tank heater is waterproof, must be fully submerged in water when working, place it horizontally or vertically near the water intake or where the way of water flow