This is a Cellstar FTU-30B inverter. I purchased and used this previously, but I am selling it because I bought a different one. I have checked its operation before listing it. It is in relatively good condition, but there are some minor scratches. *Please be sure to read the profile before purchasing. ・Product Description Example applications: Devices up to AC100V with a maximum power consumption of 30W / USB 5V with a maximum power consumption of 1.2A ・Mobile phones ・Mobile games ・Electric shavers ・Smartphones ・Video cameras ・Digital cameras ・Portable audio Protects against trouble with [6 protection functions] 1. Output Overload Protection If the output capacity exceeds the maximum output capacity, the power will be forcibly turned off, and it will automatically recover when the cause is removed. 2. Output Short Circuit Protection If a short circuit occurs on the output (AC100V side), the output will be stopped, and it will automatically recover when the cause is removed. 3. Abnormal Temperature Detection Protection If the internal temperature of this product exceeds a certain temperature, the power will be forcibly turned off, and it will automatically recover when the internal temperature drops. 4. Input Reverse Connection Protection If (+) and (-) are connected in reverse on the input (DC12V side), the fuse will blow. 5. Input Voltage Drop Protection If the input voltage drops below approximately 9.5V, the power will be forcibly turned off, and it will automatically recover when the voltage returns. 6. Input Overvoltage Protection If the input voltage exceeds approximately 15.5V, the power will be forcibly turned off, and it will automatically recover when the voltage returns.