VIVOSUN 1-PACK 24 Hour Plug-in Mechanical Timer Switch - UL Listed & Grounded 3-Pin Plug, High Accuracy & Stability, Multi-purpose Automates your lighting needs; Brings convenience & encourages productive growth with consistency of lighting Essential for all hydroponic system applications or daily home kitchen use 15-minute On/Off, 24 hours settings; 125V, 15A, 60Hz, 1/2HP, 1875W Heavy duty construction; Timer mode can be turned off UL listed ensures top security & stability