DROK Uninterruptible Backup Power Supply Module Voltage Converter UPS AC 110V-240V to DC 13.5V 5A Volt Regulator Transformer Board DROK UPS Power Converter input voltage range AC 110V-240V, input frequency 50/60Hz; output voltage DC 13.5V, 5A, 60W Application: the UPS power supply can centralized UPS power cameras, alarm probe, locally or other places that need continuous power With battery interface, can be used with lead-acid battery and the maximum can be equipped with 12V 7AH battery, the voltage after power off is the direct output voltage of lead-acid battery Multi-functional: with UPS function, it has high charging efficiency when charging battery and also can control battery's charging status automatically, can effectively extend battery's performance life Special Design: single output, adopts battery detecting, protecting, it can switch to be battery powered automatically when power off; with multiple protections: short circuit, over-current, over-voltage protection