Orange is the color of social communication and optimism. From a negative color meaning it is also a sign of pessimism and superficiality. For more on the color orange. With the meaning of colors, in color psychology, yellow is the color of the mind and the intellect. It is optimistic and cheerful. However it can also suggest impatience, criticism and cowardice. For more on the color yellow. Green is the color of balance and growth.
The Mercury 3 - Day/Night Fan Speed controller provides the indoor gardener with perfect ventilation control. Easy to use. Just plug your fan into the controller, set the day and night temperature required for your garden, and then let the Mercury 3 do the rest of the work for you.ercury 2. The Mercury 2 is a fully adjustable fan speed controller used to ventilate your garden. The innovative 'fire-up' feature provides full power for your fan upon start up and then slows to the desired fan speed setting on the dial. This extends the life of the fan by properly controlling the electrical load.
The blower resistor is connected in series with the blower fan. This means that the current running through the blower motor, and thus is speed is controlled by the resistor value. The user chooses a suitable fan speed by using a selector to connect one of the resistors in the blower resistor pack. Blower resistors are made of several resistors with different resistances.