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the 60l green building has two operating modes passive when the internal temperature is between 19 26c air flow is controlled by the computerised louvre system and by tenants opening or closing windows accordingly; active when the building temperature is above or below the 19 26c band, active heating or cooling can be operated by tenants.

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photoelectric sensors are made up of a light source (led), a receiver (phototransistor), a signal converter, and an amplifier. the phototransistor analyzes incoming light, verifies that it is from the led, and appropriately triggers an output. photoelectric sensors offer many advantages when compared to other technologies.

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traditional incandescent bulbs use a lot of energy to produce light and are no longer manufactured. 90 of the energy is given off as heat; that lost energy is money we are throwing away; newer energy saving lightbulbs provide the choices in colors and light levels you've come to expect.

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