Optical coupler is also called optical splitter , is one of the most important passive devices in optical fiber link, is with multiple inputs and multiple output end of the optical fiber connected devices. The fiber optic splitter by the light splitting principle can be divided into the fused biconical taper (FBT type) and planar waveguide type (PLC type).
PLC Splitter, With SC/APC Connector,SC/UPC Connector, LC/APC Connector , LC/UPC Connector
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The compatibility of the circuit is the most important factor affecting the safety of the straight tube type LED lamp. At present, some of the straight tube type LED lamps use the gold compatible with the straight tube type fluorescent lamp, and can be directly mounted on the fluorescent lamp holder, such as the ballast for removing the fluorescent lamp. , or replace the ballast with a rectifier, etc., provided that the circuit must be modified, otherwise it may cause smoke, fire and other hazards.
The JEL 801 straight tube type LED lamp standard set by the Japan Electric Ball Industry Association is dangerous to prevent consumers from accidentally installing a straight tube type LED lamp on an incompatible circuit, and adopts a gold design that is incompatible with a straight tube type fluorescent lamp. And strengthen the safety measures of the gold, so that the lamps can be more firmly installed on the lamp holder to avoid the danger of falling during an earthquake.
The JEL 801 standard is of great reference value in China. The LED lamps manufactured in mainland China and Taiwan will have the opportunity to be exported to Japan. 
Japan's straight-through tubular LED lamp standard JEL 801 standard has a great reference value for China
[High-tech LED News] Japan is the fastest growing country for LED lighting in Asia. Its LED lighting standard is also the fastest and most complete in the Asian region. In terms of LED lighting standards, the Japanese Industrial Standards Survey has developed a ball type. The safety and performance specifications (JIS standard) of LED lights, and in October 2010, the Japan Electric Ball Industry Association also set the standard for straight-tube LED lights, with special emphasis on safety.