This product does not deserve the name of a power supply. It should be better called a ticking bomb assembled by some dude in a garage in oder to put your house on fire some day. The circuit design and its embodiment are just terrible. The PCB is full of led pebbles and looks so dirty as if it were taken out of some garbage bin. Some parts are apparently solder in later into the PCB without proper planning. No PWM fan control although a sticker on the case claims that the fan is temperature controlled! See the photos.
Excelent ! Charge with 30Ah