Description <br> 10W USB Mini Aquarium Heater 26 Degrees Constant Temperature Submersible Small Fish Tank Heating Rod Temperature Controller <br> Note: <br> 1. This product is suitable for 2L water capacity. <br> 2. Be sure to use 5V2A charger for power supply. If you use a charger with insufficient current, the flash screen will not be heated. <br> 3. Two heating rods can be used in one fish tank to increase the heating capacity, for example, two heating rods can be used simultaneously in a fish tank with 4L water capacity. <br> 4. However, only one heating rod can be used at the same time when one charger or power pack has multiple USB ports, otherwise it will cause heating failure or poor heating effect. <br> 5. No digital dispaly. <br> features: <br> 1. 26C Constant Temperature <br> 2. Quartz explosion-proof material is safe to use. <br> 3. Small size, 52mm long heating rod, as big as the thumb, more beautiful. <br> 4. Automatic constant temperature and high temperature protection. <br> 5. USB plug can be connected to the mobile phone charger or the charging bank. <br> 6. The water level can be as low as 2cm and can be used by both fish and turtles. It can be used in fresh water, seawater fish tanks, pet feeders, etc. <br> Specification: <br> Power: 10W <br> Input Power: 5V 2A <br> Length of power line: 1.2m <br> Main body size: 8.5 * 1.8cm <br> Suitable for: about 25L water capacity <br> Scope of use: small fish tank/pet water dispenser <br> Temperature control range: 26C Constant Temperature <br>