Free Shipping from Greener Crew 239-357-1853 Craig. Made in the USA. DAY/NIGHT COOLING THERMOSTAT W/ PHOTOSENSOR. Designed with two thermostats, the CT-CT-1P temperature controller offers one temperature setting during the day (light period) and a different temperature at night (dark period). The CT-CT-1P is equipped with a photo sensor to automatically switch between day and night temperature settings. Internal sensors allow a 7ºF comfort zone or 3ºF with an external coil or remote bulb. Built with 4 synchronized outlets, the CT-CT-1P can control up to 15 Amps of cooling equipment. Like all our controllers, the it is manufactured with corrosion resistance, black anodized chassis and durable components providing reliable performance for years to come.