🔥Widely used🔥Micro submersible heater 10W USB aquarium fish tank heater 26 ℃ thermostat heater suitable for 3L fish tank fresh water brine

Note: The heating rod shall be completely immersed in water when used: 3L water can be heated above room temperature 18,2L water can be heated below room temperature 18. The USB power socket can be used to connect and use the mobile phone charging power supply/mobile power supply. Please note that the output voltage must be 5 V 2 A. It is recommended to use a power socket the power socket is not included in the package). Constant temperature heating, preset constant temperature 26 ° C/78 ° F, no setting, plug and play, temperature control range 18 ° C-34 ° C/65 ° F-94 ° F. Quartz explosion-proof glass is solid and durable, corrosion resistant, and LED light reminds/prompts work. The red light flashes below 18 ° C/65 ° F, Red lamp heating below 25 ° C/77 ° F, Constant temperature of green light above 26 ° C/79 ° F, The red and green indicators of 36 ° C/97 ° F flash to remind the overheating protection, The yellow light flashes, disconnect the water and turn off, Buy with confidence: pr