The B1 Magic Eye HT Thermostat allows precise control of any heat source up to 600w by using advanced microprocessor technology. The HT version controls 29 to 45 degrees celcius. The Night time drop facility allows the unit to provide a different temperature to the vivarium during the hours of darkness, this provides a more natural environment for your pet. The light level can be adjusted to suit room lighting. The B1 Magic Eye is a dimming thermostat that gradually varies the power supplied to the heat source for a smooth change in temperature inside the vivarium. Recessed control adjusters are used to prevent accidental temperature changes if the unit were to be knocked which would be easily done if the dial protruded from the casing. A yellow LED provides real time feedback as to how much power is being supplied to the heater. The Red LED alerts the user that the thermostats light sensor has detected that it is night time and has switched to night operation. Long cable lengths ensure the unit can be fitted easily into most vivarium setups.