HID Lighting Controller HLC-3e, C.A.P. Indoor gardeners can keep plants and lamps safe with the Digital HID Lighting Controller with 15-Minute Hot Start and High Temperature Protection. It shuts down lights when their temperature exceeds a pre-set limit, activating a Temp Exceeded light to alert the user. When the temperature drops, the controller turns lights back on. It also prevents damage caused by hot starts by monitoring the power supply and keeping lamps from receiving power for 15 minutes after a power outage. Temperature monitored by 15 foot remote temperature sensor. Rated for 15 amps at 120 volts. Three-year warranty.