4.3.2. The lighting system
is used to illuminate the spaces with different functions so the design capacity and use lamps of each space is different. To save energy costs for lighting systems, in the process of building lighting design should note that 2 factors: lighting density for each functional area (office, the hotel is 11 W / m2, hospital, school is 13 W / m2, ... ..); lighting systems use energy-efficient bulbs (T5 lamp technology and LED is the latest, most economical). A survey of 50 works, the lighting design density most works are standard, so we only use evaluation criteria for energy-efficient bulbs works as follows:
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