Size:25W Quantity:1 batteries required:No Features:1.Pay attention to the heating rod needs to be completely immersed in the water. If the heating rod is not completely immersed, it will automatically stop working. Avoid the drying controller display "E1"2.Adopt intelligent variable frequency heating technology, dual -tube rapid heat heating up, energy saving and power saving, long service life.3.The operation is safe and convenient, the touch/button is adjusted. Long press to unlock. Press the touch button 3s or more to unlock the temperature adjustment, worry -free and convenient, and prevent misunderstanding.4.Every time the temperature increases by 0.5 C, the temperature can be regulated, and the temperature control range: 18 -34 / 64 -93 5.Double protection of water breaks+anti -drying and burning, automatic power off when changing water or lack of water, safety and guarantee.6.High -temperature protection cover, prevent burns fish, turtles, freshwater seawater fish tanks common7.The installation is simple and convenient, with a strong suction cup fixed, which can be adsorbed on the inner wall of the fish tank or the bottom of the tankSpecifications Material: ABS shell+double -hair heating nickel chromium electric wireSize: 7.5cmx6.8cmx3cm/2.9x2.7x1.20 inch (lxwxh)Power: 25W/50W/100WInput voltage: UK PLUG 220V-240V 50/60HzTemperature control range: 18 -34 / 64 -93 Temperature control accuracy: 0.5 /1 Applicable fish tank water capacity: 25W-20L;50W-30L (about 2 ~ 8 Gallon)100W-75L (about 5 ~ 20 gallon);Power line length: about 130cmPackage List:1X Mini Submersible Aquarium Heater Intelligent Control Chip. Automatic Constant Temperature Setting Function. When the Water Temperature Reaches the Set Temperature, the Heating Rod Is Automatically Stopped Heating, and the Heating Function Is Turned on When the Set Temperature Value Is Lower;Super Temperature Protection, When the Water Temperature Exceeds 35 C/95 C, the Heating Rod Is Automatically Disappeared "H1" Double Induction Water Temperature Probe+dual LED High -definition Digital Water Temperature Display, Synchronous Real -time Display Water Temperature, Accurate Measurement Measurement The External Temperature Controller Is Convenient to Set/adjust the Temperature, Which Is Safer to Use. Precise Constant Temperature, Adjust Accuracy 0.5 /1 , Display Accuracy 0.1 . Ultra -low Water Level Heating Is Applicable, the Water Level Is as Low as 3.5cm, the Use Range Is Wider, and the Fish Tank Turtle Tank Is Applicable SHOP WITH CONFIDENCE: To Provide You With the Highest Quality Service, If You Have Any Question, Please Feel Free to Contact Us.We Will Provide After-sales Service Until You Are Satisfied. See more product details Intelligent Control Chip. Automatic Constant Temperature Setting Function. When the Water Temperature Reaches the Set Temperature, the Heating Rod Is Automatically Stopped Heating, and the Heating Function Is Turned on When the Set Temperature Value Is Lower;Super Temperature Protection, When the Water Temperature Exceeds 35 C/95 C, the Heating Rod Is Automatically Disappeared "H1" Double Induction Water Temperature Probe+dual LED High -definition Digital Water Temperature Display, Synchronous Real -time Display Water Temperature, Accurate Measurement Measurement The External Temperature Controller Is Convenient to Set/adjust the Temperature, Which Is Safer to Use. Precise Constant Temperature, Adjust Accuracy 0.5 /1 , Display Accuracy 0.1 . Ultra -low Water Level Heating Is Applicable, the Water Level Is as Low as 3.5cm, the Use Range Is Wider, and the Fish Tank Turtle Tank Is Applicable SHOP WITH CONFIDENCE: To Provide You With the Highest Quality Service, If You Have Any Question, Please Feel Free to Contact Us.We Will Provide After-sales Service Until You Are Satisfied.