Won Brothers Titanium Pro-Heat aquarium heater, 11 inch long with remote temperature controller. Unbreakable corrosion resistance Titanium heating tube. Double heating tube. Fully submersible. On-Off heating light and power indicator. Can be mounted either horizontally or vertically. Automatic protection device activates when sensor is disconnected or shorted. Very durable and reliable. Safe & easy to operate. Aquarium IC (integrated circuit) thermostat uses IC to control the heater to adjust desired aquarium temperature. Operating temperature range: 60 to 93 degrees Fahrenheit. Power cord length is 6 feet long to heater, and control has additional 6 foot cord to plug into wall outlet. For use in saltwater or freshwater. Full one year warranty.