Brand: YOFOTHS

🐟SMALL FISH TANK HEATER 10W: Specially designed for small fish tanks less than 1 gallon, does not occupy the space of the fish tank, USB power supply, rated voltage DC 5V/2A. (A non-5V 2A adapter may cause the heater not to heat up, the numbers to flash, or to restart repeatedly.) 🐟INTELLIGENT AND PRECISE CONSTANT TEMPERATURE: Upgrade the chip, the accuracy is ±1°F, save more electricity bills. After setting the target temperature, the power is suddenly turned off, and the target temperature remains unchanged after turning on the power again. 🐟OVERHEATING PROTECTION: Built-in thermometer, temperature range 64-93°F. If the water temperature exceeds 95°F, the error code "HI" appears, the heater stops working, and when it returns to below 95°F, the error code disappears and it starts working again.