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节能灯是继白炽灯、普通荧光灯之后发展起来的又一代新光源。它不仅光色柔和,光通量强,显色性好,最突出的优势且在它的节电效果极其明显,与白炽灯相比可节电75%以上,为此,节能灯的推广受到了世界各国政府的高度重视。我国也开展了推广“绿色照明工程”的活动。节能灯是由灯管和镇流器两部分组成的。其灯管内壁的发光物质与普通荧光灯管不同,它是以稀土三基色荧光粉为主要原料的,具有发光效率高、显色性好、光线柔和等特点。而镇流器分为两种:一种是传统的电感式镇流器,一种是现代的电子式镇流器。电感式镇流器体积大、份量重、损耗大、启辉速度慢、电压不足时不能点燃灯管、且灯管发光时有闪烁现象等不足。而电子式镇流器能够完全克服上述所有缺点,为此,目前通常采用电子式镇流器。目前,市售的节能灯具种类繁多,从外型上分有球型、吸顶型、裸露型等几大类。从灯管形式上分为:三U型、双U型、单H型、双H型、双D型、UL型等几大类。一般三U、双U型及
Energy-saving lamps are another generation of new light sources developed after incandescent lamps and fluorescent lamps. It not only has a soft light color, strong luminous flux, and good color rendering. It has the most outstanding advantages and its power saving effect is extremely obvious. Compared with incandescent lamps, it can save more than 75% of electricity. For this reason, the promotion of energy-saving lamps has attracted the world. Governments of all countries attach great importance to it. China has also launched activities to promote “green lighting projects.” Energy-saving lamps are composed of two parts, a lamp and a ballast. The luminescence substance of the inner wall of the lamp tube is different from the ordinary fluorescent lamp tube. It is based on the rare-earth tricolor fluorescent powder as the main raw material, and has the characteristics of high luminous efficiency, good color rendering property, and soft light. The ballast is divided into two types: one is a traditional inductive ballast, and the other is a modern electronic ballast. Inductive ballasts are bulky, heavy weight, large loss, slow start-up rate, lack of voltage when the lamp cannot be ignited, and flickering when the lamp is lighted. Electronic ballasts can completely overcome all of the above disadvantages. For this reason, electronic ballasts are currently used. At present, there are many kinds of energy-saving lamps that are available on the market. There are several major types of energy-saving lamps, such as bulbs, ceilings, and bare ones. Divided from the lamp form: three U type, double U type, single H type, double H type, double D type, UL type and other major categories. General three U, double U type and