Genuine Changzhou Sanhong SH-DC0240400 Class 2 Transformer Adapter 24V 400mA Original Sanhong SHDC0240400 AC/DC Power Adapter (compatible with replacement model XRDC0240400 as well) INPUT: 110V/115V/120V AC 60hz (Standard US 2 Prong Plug) OUTPUT: 24 volt DC 400 ma (0.4 amps) OEM replacement power supply for many household items and power tools including DrillMaster 18v Battery Chargers Warning: When used as a battery charger for Drill Master 18v products it is important to follow the manufacturer's direction and unplug the adapter after 3 hours. If you do not the adapter is likely to be damaged from overheating.