The Intermatic TN111 15-Amp Lamp and Appliance Timer is a set of four white timers designed for use with lamps and appliances. With a compact size of 4.90 x 3.25 x 3.25 inches and a weight of 0.40 pound, these timers are easy to install and operate. The TN111 model is manufactured by Intermatic Inc, known for producing quality electrical supplies.