ES07.02.doc

Light dimmers 灯光调光器 Energy saving ballasts 节能镇流器Sensor controls 传感器控制 I. Electronic Light Dimmers电子灯光调光器 These Light Dimmers can be used to adjust the intensity of an incandescent lamp to a desired level from zero to the lamp’s rated wattage. In simple terms the dimmer converts an ordinary lamp into a multi-purpose lamp. The electronic light dimmer finds applications in modern homes, commercial buildings like offices, hotels, hospitals, cinema, theatres, etc. Leading chandelier and pedestal/table lamp manufactures also use electronic light dimmers. 可以使用这些灯光调光器来调节白炽灯的亮度到一个想要的等级，从0级到灯泡的额定瓦数。简单来说，调光器就是将一盏普通的灯转变为一盏多功能的灯。电子灯光调光器在现代家庭、商业建筑物象办公室、酒店、医院、电影院、剧院等都有应用。主要的枝形吊灯、座灯和桌灯产品也使用电子灯光调光器。 The electronic light dimmer uses the principle of phase control for applying the alternating voltage on the load. Power saving is substantial since the voltage can be brought down resulting in less power consumption for the lamp. Typical power savings for an incandescent lamp using a dimmer are given in the following table: 电子调光器采用分段控制的原则，对负载进行电压的改变。由于电压可以降低而引起电灯的功率消耗更少，因此电力节约是相当大的。下面的表格中给出了一台白炽灯使用调光器的典型功率节约：  Light Output Power Saved 灯光输出节约的功率 100 % - 90 % 6 % 80 % 11 % 70 % 16 % 60 % 22 % 50 % 28 % 40 % 35 % Judicious use of these electronic light dimmers can save electricity substantially. In addition the life span of the bulb can also be increased significantly. 明智使用这些电子灯光调节器可以节省相当多的电力。此外灯泡的寿命也可以大幅增加。The electronic dimmers are commercial available in different colors to blend with the décor of rooms. 市场上有不同颜色的电子调光器出售，可以配合房间的装饰。 II. Electronic Ballast 电子镇流器The Electronic Ballast is an innovative energy-saving device with unique features which are not available in the conventional core-coil ballast. Although it has a higher initial cost compared to the conventional ballast, the payback is generally attractive. Savings vary from 20% to 40% depending upon the operating hours, brand of ballast and unit energy rate. Savings also depend on such factors as lamp type and ope