LAD-240 series is a 240W economical AC/DC low profile security power supply with UPS function. Adopting the input range from 90Vac to 264Vac (115Vac/230Vac selectable by switch) and supports output 13.8V, 27.6V, 41.5V and 55.2Vdc. With high efficiency up to 88% and built-in AC, battery switch for easy maintenance. In addition, LAD-240 series also provide TTL signais for AC OK, battery disconnect, battery reverse polarity (No damage), battery low détection, battery full and discharge, to allow easy intégration into security and fire Systems directly.