Capacity/energy/running time statistics: statistics automatically after the power is turned on (ON), and the value of the last state be displayed after the power is turned off (OFF), and automatically restart recording after the power is turned on again; in the corresponding interface, long the ON/OFF button for 2 seconds to automatically clear the corresponding data. Setting the maximum capacity ()/energy (OPH): When the /OPH function is activated, when the statistical capacity/energy is higher than the set maximum capacity/energy, the power supply automatically turn off the output and flash the display ""//OPH'; After the alarm is released, the capacity/energy statistics be cleared automatically; Set the maximum discharge time (OHP): When the OHP function is activated, when the power supply running time is the maximum discharge time set, the power supply automatically turn off the output and flash "OHP"; after the OHP alarm is released, the time statistics data be cleared automatically; Function, can realize quantitative/timing power supply very well. Note: When the 0AP/OPH and OHP functions are not turned on, the power supply automatically record the capacity/energy and running time. After the /OPH and OHP functions are turned on, the power supply automatically turn off the output after reaching the set value; The running time is countdown mode. Material: Plastic colour: As shown Package Contents: 1 x DC DC Buck Boost Converter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.