Intermatic ST01 7-Day Heavy-Duty Programmable Timer, 120-277 VAC, 15A, WhiteHighly versatile Heavy Duty Timers are ideal for any application that requires a simple or complex ON OFF schedule, regardless of load. No neutral connection is required. *NOTE: Not for use with sunlamps, saunas, or loads that could cause personal injury if timed incorrectly. 7 Day Digital Programmable Wall Switch Timer with Astro Feature.