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Occupancy sensors detect the presence of individuals in a room and turn lights on or off accordingly. This saves energy by ensuring lights aren’t on when spaces are unoccupied, thus reducing electricity usage and emissions.

Low-emissivity (Low-E) windows have a thin coating to minimize the amount of infrared and ultraviolet light that passes through glass without compromising the amount of visible light transmitted. This helps in cutting heating and cooling costs and reducing the need for artificial lighting.

Dimmable lighting allows for the adjustment of light output to match the task at hand, which reduces energy consumption when full brightness is not needed. This extends bulb life and decreases energy costs.

Smart lighting involves automated controls and connectivity to adjust lighting based on various factors like occupancy, daylight availability, and specific user preferences, thereby enhancing energy efficiency.

Utilizing recycled materials in the manufacture of lighting products can significantly lower the environmental impact associated with resource extraction and processing. It also encourages sustainability in the production supply chain.

Demand response programs in lighting involve reducing or shifting electricity use during peak periods to help balance supply and demand. This can be facilitated by smart lighting controls that can receive signals to dim lights or change operation patterns.

Task lighting focuses light where it's needed for specific activities, avoiding over-illumination of an entire space. It helps in reducing energy consumption while providing proper illumination for activities.

Fixtures made from recyclable materials, or designed to be easily disassembled for recycling, reduce the environmental impact at the end of their life cycle. This practice supports material conservation and waste reduction.

Electronic ballasts for fluorescent lamps are designed to operate with higher efficiency than older magnetic ones. They improve energy savings, provide better control of the light output, and contribute to a reduction in greenhouse gas emissions.

Biodynamic, or human-centric lighting, is designed to replicate the natural light patterns that humans have evolved with. It affects circadian rhythms positively and reduces energy consumption as it adjusts intensity throughout the day.

Much like occupancy sensors, these systems use motion detection to turn lights on or off. This kind of pinpointed control can result in significant energy savings, particularly in less frequently used areas.

Daylighting is the practice of using natural light to illuminate indoor spaces. This reduces reliance on artificial lighting, thereby saving energy and minimizing the carbon footprint. The key is to balance heat and light to avoid excess.

Tunable white lighting systems allow users to adjust the color temperature and intensity of the light. Such systems can save energy by adjusting the lighting to match natural light levels and user needs over the course of the day.

Time switches are used to automatically control lighting systems based on a preset schedule. They ensure lights are only on during specified hours, which can significantly reduce energy waste in both residential and commercial spaces.

In theaters, using LEDs or automated lighting systems can drastically reduce energy consumption. Stage lighting with these technologies is not only more efficient but also offers greater control over the light quality and distribution.

This lighting is optimized for the most visually efficient spectrum using fewer watts, while maintaining the light quality necessary for task performance. This reduces energy consumption and can improve visual acuity and productivity.

LEDs (Light Emitting Diodes) are highly efficient, consuming up to 90% less power than incandescent bulbs. They have a longer lifespan, reducing the need for frequent replacements, thus less waste, and they don’t contain toxic materials like mercury.

Solar-powered lighting systems for outdoor spaces use photovoltaic cells to convert sunlight into electricity, which is then stored in batteries for use at night. This provides off-grid lighting with no operational emissions.

Cool roof lighting strategies are designed to reflect more sunlight and absorb less heat than standard roofing materials. Combined with proper interior lighting, this can diminish the need for artificial cooling and lighting, thus saving energy.