Paramount IPS-1 mini IPS (instant power supply) backup with 1 LED light bulb. This mini IPS power supply features IPS battery: 4.2 volt (4800mAh), LED lamp (Pathor LED), backup power supply time: minimum 4 hours, charging time: full discharge battery (7 hours). This IPS package is easy to carry and no need to install. Just buy, charge it and use it. No ultraviolet ray.