They're easily replaced by more efficient and less harmful lights, yet Winterbottom and Wilkins found 20 per cent of classrooms were lit solely by the harmful variety.

换成能效更高、危害更小的灯并非难事，但温特伯顿和威尔金斯发现，20%的教室里用的全是会造成损害的灯；

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Lamps: Shelf lights, roof lights, a variety of built-in, external cabinets special lights. Note: The accessories are not per meter pricing range.

层板灯、顶板灯、各种内置、外置式厨柜专用灯。注：该配件不在每米计价范围内。

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Factory production specifications cold cathode, Windows neon lights, a variety of neon products, electronic matching neon power, and a large neon light works.

工厂生产各种规格冷阴极管、窗霓虹灯、种霓虹制品、套霓虹电子电源、型霓虹灯工程。

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As part of a unique art project celebrating its 75th anniversary, the West span of the Bay Bridge has been outfitted with 25, 000 LED lights that will display a variety of undulating designs nightly for the next two years.

CNN: San Francisco turns a bridge into art with 25,000 lights

Yixing Xinwei processes and refines rare-earth mineral compounds, which are used in a variety of products from semiconductors to fluorescent lights (see accompanying box).

CNN: China's Rarest Man

In a variety of ways, firms turn the lights on, they start to look at all aspects of the business that fall under the umbrella of sustainability.

FORBES: Four Steps to Improving Profits through Sustainability