LED fluorescent lamps are UL certified

Certification requirements for fluorescent lamps
Exporting fluorescent lamps to different countries requires different certifications, such as:, etc. Now the requirements for fluorescent lamp certification are explained as follows.
． Fluorescent lamp shape and fire protection requirements Fluorescent lamps can be made into different shapes. Take the fluorescent tube type fluorescent lamp as an example. Its appearance is the same as that of an ordinary fluorescent tube. The power module and the fluorescent lamp are wrapped in a transparent polymer shell. The transparent polymer shell serves as fire and electric shock protection in the product. According to the standard requirements, the fluorescent lamp housing material must be above grade, so the transparent polymer shell must be made of materials above grade. It should be noted that in order for the product shell to meet the required grade, its thickness must be greater than or equal to the thickness required by the grade of the raw material. The fire protection grade and thickness requirements can be found on the yellow card of the raw material. During the actual inspection, it was found that in order to ensure the brightness of the lamp, manufacturers often make the transparent polymer shell very thin, which requires inspection engineers to pay attention to ensuring that the material reaches the thickness required by the fire rating. Different raw materials have different thickness requirements for the same fire protection grade. Some raw materials can meet higher fire protection grade requirements at a smaller thickness.
． The drop test is required by product standards and should be conducted to simulate drop situations that may occur during actual use. After the product is dropped from a height to a hard board, the outer casing must not be broken or even expose dangerous live parts inside.
． The electric strength transparent shell surrounds the power module inside, and the transparent shell material must meet the electric strength requirements. According to standard requirements, based on the operating voltage conditions in the United States, the space between the internal high-voltage live parts and the outer casing (covered with metal foil for testing) must be able to withstand the AC electric strength test. Under normal circumstances, the thickness of the product shell reaches about . Depending on the type of power module, different standards can be considered for testing and certification. If the power module is a power supply, it can be used to test the certification. The power supply refers to a power supply that uses an isolation transformer, the output voltage is lower than DC, and the current is less than G. And for non-power supplies. It is used to test the certification. The technical requirements of these two standards are very similar and can be referenced with each other. The internal power supply module of most lamps uses a non-isolated power supply, and the power supply output DC voltage is also greater than 100%, so it is not applicable to the standard, but is suitable for the standard.
． Insulation requirements Since the internal space of fluorescent lamps is limited, attention should be paid to the insulation requirements between hazardous live parts and accessible metal parts during structural design. Insulation can be spatial distance and creepage distance, or it can be insulating sheets. According to standard requirements, the spatial distance between dangerous live parts and accessible metal parts must be ., and the creepage distance must be . If the distance is not enough, an insulating sheet can be added as additional insulation. The thickness of the insulating sheet must be greater than . If the thickness is less than . High voltage testing of soap.
． Temperature rise test Temperature rise test is a must-do item in product safety testing. Standards have certain temperature rise limits for different components. In the product design stage, manufacturers must pay great attention to the heat dissipation problem of the product, especially certain parts (such as insulation sheets, etc.) that are easily damaged when working under high temperature conditions for a long time, resulting in the risk of fire or electric shock. The power module inside the lamp is in a closed and small space, and heat dissipation is limited. Therefore, attention should be paid to selecting appropriate component specifications to ensure that the components work within a certain margin, thereby avoiding overheating caused by the components operating under conditions close to full load for a long time.
． The power module of the structural fluorescent lamp is installed inside the casing, and the space is limited. In order to save space, some manufacturers surface-solder pin-type components to B. This practice is allowed. Because surface-soldered pin-type components are likely to fall off due to weak soldering and other reasons, causing danger. Therefore, socket welding should be used as much as possible for these components. If surface welding is unavoidable, additional protection should be provided by adding glue to fix it.
． Fault testing Product fault testing is a crucial test item in product certification testing. Some components are short-circuited or open-circuited on the line. , to simulate failures that may occur during actual use to evaluate the safety of the product under single fault conditions. In order to meet this safety requirement, when designing the product, it is necessary to consider adding a suitable fuse to the input end of the product to prevent overcurrent and fire when the output is short-circuited or internal components fail.
Shenzhen Bice (B) Testing Center is specialized in handling R,,R,,,,,B,,R,, battery, light source and other certification services. The main testing products include lamps and lighting products, information computers Peripheral products, audio-visual products, wireless communication products, household appliances, toy products, mechanical products, etc. The Best (B) Testing Center is a professional third-party laboratory accredited by European authorized laboratories for industrial and consumer product testing, certification, R certification, R certification, and certification. It is engaged in product safety () testing, electromagnetic compatibility (testing ) testing services, chemical testing and material analysis, toxic substance content testing of electronic and electrical products), toy safety testing, wireless Bluetooth product testing, mechanical certification and many other products. It has been recognized by international laboratory accreditation organizations and is also the United States , California, Rheinland, Germany, and Norway are authorized standardized third-party laboratories, qualified to issue fair data to the society.
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