Adjustable temperature range: 18-34°C. Easy installation and maintenance, high safety. Sensitive temperature regulator is set in the rod and high resistance heating wire is used. The heating is uniform and stable and the service life is long. Good heat resistance, good insulation and high heat conduction efficiency. Double waterproof sealing ring is used for heater, which reaches waterproof grade IP68. When using, please submerge completely in water. Watt: 100W. Tank Capacity: 100~200L. Water Volume: 14~26gal. Length: 210mm.