不过飞利浦灯泡的顶却很平坦，尽管点亮时摸起来有点暖，却不是该产品的主要散热部分。
But the flattish top of the Philips bulb, while warm to the touch when lit, isn't a major part of the product's thermal management system.
他们已远不再像飞利浦兄弟1891年始做生意一样，只销售简单的白炽灯泡了。
They are, well, light years away from the simple incandescent bulbs the Philips brothers made when they started the business back in 1891.
飞利浦灯具公司的高管Theo van Deursen说，一个普通的照明白炽灯泡值一欧元，一年用的电值15欧元。
A standard incandescent light bulb costs around EURO1, says Theo van Deursen, chief executive of Philips Lighting, and USES EURO15-worth of electricity a year.
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