A proof mark. B basic symbol: including product name, model number, manufacturer name, registered trademark, the date of manufacture. C performance safety signs include: rated voltage, current, nominal frequency, power source and quantity, permissible ambient temperature (the range may only mark -20 ~ + 40 ℃), the specific application of environmental labeling (such as only applicable to a product an explosive gas mixture must indicate the name of flammable gases or formula), luminaire classification symbol (such as' number) and the like. D-proof certificate number, proof that the product has been tested by an official inspection station. Some products after proof certificate number with "x" symbol, indicating that the products only under certain special conditions of safe use, specified conditions should be clearly stated prominently in the lamp housing or product description. D annotated. In addition to the mark, in order to ensure proper installation, use and maintenance of detailed instructions necessary, should be on the lighting, the built-in ballasts or lamps provided with the manufacturer's product description below. It uses LED features low heat proof led light model, intrinsically safe explosion-proof level led lights where to sell, and long life LED light source; the battery is fully charged and discharged at the end of the LED remains constant brightness; Set the heat sink on the lamp housing You can achieve an effective heat proof LED module led lamp manufacturers to ensure stability in use for coal, petroleum, railway, flood lighting and other industries. Suitable for explosive gas atmospheres 1 and Zone 2, IIA, IIB, IIC Hazardous Locations. Proof LED light consists of LED light source, power supply and explosion-proof housing components. Explosion-proof led light Direct led lights _ _ baodi integrity Koretoyo years by Zhejiang Koretoyo explosion-proof electrical Co., Ltd. Tianjin offices. Zhejiang Koretoyo explosion-proof electrical Ltd. Tianjin Office (www.tjfangbao.com) strong, credible, in Tianjin of explosion-proof lighting industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Koretoyo into the brilliant explosion and you work for a better future!