Electric in-wall timer with easy 4 button programming. Capable of 40 event settings per week with an Astronomic feature for sunrise and sunset switching. Has the ability to control incandescent, CFL (compact fluorescent light), and LED (Light Emitting Diode). Does not need a neutral wire. No. ST01K: Voltage: 120V, Amperage: 15A, Wattage: 500W, Color: White, CSA Listed: Yes, CUL Listed: No, Pkg Qty: 1, Package Type: Box