Electrical lighting is a source of light that uses electrical energy to illuminate. According to the principle of illumination, it can be divided into a heat radiation source and a gas illumination source. According to the nature of use, it can be divided into work lighting, decorative lighting and accident lighting. Fire hazard 1. When the lighting or decorative lamps are working, the surface temperature of the glass bulbs, lamps, etc. is very high. If the lamp is improperly selected, the occurrence of electric spark, arc or local high temperature may cause the combustibles in the vicinity of the lamp to ignite and burn, resulting in a fire. 2. Since lighting fixtures are generally installed in places where personnel are produced and inhabited, decorative lighting fixtures are generally installed in crowded places. In addition to causing huge property losses, fires can cause heavy casualties. 3. When the incandescent lamp is working, its surface will be hot. The higher the power, the longer the continuous use time, the higher the temperature, the surface is in contact with or close to the combustible material, and the accumulated heat can ignite the combustible material when the heat is not good. In addition, incandescent lamps have poor shock resistance and are easy to break, so that high-temperature filaments are exposed, and high-temperature bulb fragments are also prone to fire. 4. The fire hazard of fluorescent lamps is mainly on the ballast. If the manufacturing quality is unqualified, the heat dissipation conditions are not good, or the rated power is not matched with the lamp, the internal temperature will rise sharply. The long-term high temperature will damage the insulation of the coil to form an inter-turn short circuit, which generates a huge amount of heat, and ignites around the ignition. Object.