The Hydrofarm 7 Day Dual Outlet Digital Timer is designed to automate your grow lights, eliminating the manual effort required to switch them on and off at regular intervals during the day. This grounded timer comes in a convenient clamshell packaging. Along with adding convenience to growing plants, this 7 Day Dual Outlet Digital Timer from Hydrofarm also encourages productive growth, as it enables provision of consistent lighting at regular time intervals. You can set it to turn the lights on and off up to 8 times during the day. It can control two outlets simultaneously and supports a voltage of 120 V.