The 16-159 is a 9 V DC, 1000 mA switching power adapter manufactured by GC Electronics. The adapter is designed to supply power to low-voltage devices such as fire alarm systems, intercom systems, CCTV cameras, and other security equipment. It features an input voltage range of AC100-240V, 50/60 Hz, and an output voltage of 9 V DC, 1000 mA. The adapter is UL and CSA certified, and it is RoHS compliant. The adapter is a slim, wall-mountable, tabletop model, and comes with a detachable 2-pin power cord.