该产品系列包括众多性能相当的牌号，而每一牌号都有其独特的性能。
The product family includes a considerable number of performance grades, and each grade has its own unique properties.
一些品牌号称节能80%，工作寿命达45,000小时——飞利浦Master LED系列即为此例。
Some, such as the Philips Master LED range, promise energy savings of up to 80% and a working life of 45, 000 hours.
产品主要有不锈钢300、400系列的各种牌号，以及黄铜和磷铜。
The main products are the series of stainless 300 and 400, brass and phosphor copper.
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