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Fluorescent lamp is a straight tube lamp. Traditional fluorescent lamp uses phosphor to emit light, also known as fluorescent tube; Because it is round and tubular, it is also called fluorescent tube. The main parameter to choose the luminous brightness is the fluorescent lamp power. The greater the power is, the higher the luminous flux is. It is a traditional lamp with general lamp tube, low price and relatively short service life. Its raw material is fragile glass.

Selection criteria for fluorescent lamps and fluorescent lamps:

1. It is generally recommended to select thin tube diameter (pipe diameter ≤ 26mm), i.e. T8, T5 and other types to replace T12 lamp, which has obvious energy-saving effect.

2. Three primary color fluorescent lamps under new technology shall be selected, and halogen powder fluorescent lamps shall not be selected. Three primary color tubes have the advantages of high luminous efficiency, good color rendering and longer life. Although the price is expensive, due to its high light efficiency, it not only has good energy-saving effect, but also reduces the operation cost; Moreover, due to the reduction of the number of lamps used, the cost of lamps and ballasts is saved, but the total initial construction cost of the lighting system is reduced.

3. When the power of fluorescent lamp is large, in the functional lighting places (for external decorative requirements), we should choose not less than 4 feet, that is, 1.2 meters long tube, that is, T8 36W and T5 28W, and its luminous efficiency is higher.

4. Select neutral color temperature fluorescent lamp: the color temperature of the light source can be determined according to the illuminance except for the color requirements of the construction: in short, high illuminance (& gt); 750lx) should use cold color temperature (high color temperature), medium illumination (about 200 ~ 1000lx) should use neutral color temperature, and low illumination (≤ 200lx) should use warm color temperature.

IV. fluorescent lamp equipment

Ballast is an auxiliary component of fluorescent lamp. It is generally divided into electronic ballast and inductive ballast.

1. Electronic ballast, composed of electronic components, can generate the voltage required when the fluorescent lamp is started. The initiation time is short, without flicker and noise. Wide application voltage. Even if the fluorescent lamp has black hair, it can start. Gradually replace inductive ballast. At present, the price of electronic ballast is also very cheap, with small volume and light weight, which is convenient for equipment to be used in T8 support or T5 support.

2. Inductive ballast

It is a magnetic coil used to regulate the current flowing through the lamp. When the starter is opened, an arc surge will pass through the lamp tube. Then, after the lamp tube emits light, the starter will insist on the current flowing at the correct speed. In most fluorescent lamps, the starter is an automatic switch. When it detects that the lamp tube emits light, it will always be disconnected. Just disconnect the lamp power supply and the starter will be closed. Fluorescent lamps shall be equipped with separate ballasts and starters for each lamp tube. Since fluorescent lamps only need three main components, all fluorescent lamps will gradually dim with the passage of time, and may flicker or flicker. These are warning signals. When you notice any change in the normal performance of fluorescent lamps, you should immediately make appropriate repair.

The disadvantage of inductive ballast is that the starter is easy to break, the voltage planning is narrow, noise is easy to occur, and it will flash when starting. On the verge of being eliminated.

Article from: LED fluorescent tube manufacturerhttp://mushuren.cn