Optical fiber jumpers are used to make jumpers from equipment to optical fiber cabling links. There is a thicker protective layer, which is generally used in the connection between the optical transceiver and the terminal box, and is used in some fields such as optical fiber communication systems, optical fiber access networks, optical fiber data transmission, and local area networks.
Optical fiber jumper (also known as optical fiber connector) means that both ends of the optical cable are equipped with connector plugs to realize the active connection of the optical path; one end with a plug is called a pigtail. Optical Fiber Patch Cord/Cable is similar to coaxial cable, except that there is no mesh shielding layer. In the center is the glass core through which light propagates. In a multimode fiber, the diameter of the core is 50μm~65μm, which is roughly equivalent to the thickness of a human hair. The single-mode fiber core has a diameter of 8 μm to 10 μm. The core is surrounded by a glass envelope with a lower refractive index than the core to keep the optical fiber in the core. On the outside is a thin plastic jacket to protect the envelope.
The classification and overview of optical fiber patch cords are as follows Patch Cord,Ftth Mm Patch Cord,Simplex Ftth Patch Cord,Sm Ftth Optical Patch Cord Scodeno , https://www.scodenonet.com
R30 floodlights are widely used in commercial, industrial, sales, educational and hospitality lighting and are the most widely used bulbs today. Lighting Science's LEDR30 floodlights utilize optimized digital lighting (ODL) technology for indoor and outdoor in-line lights and other fixtures that use standard spiral bases.
This LED floodlight has been tested by the Independent Laboratory of Light Laboratory in Orange, Calif., compared to the 65 watt natural light R30 incandescent lamp. The LED floodlight has a luminous flux of 483 lumens at 128 lm (36 lm). /W), 488 lumens per light for 65.7 watts of incandescent light.
The other two advantages of the ODL floodlights are also demonstrated in the experiment: ODL floodlights have a lifespan of up to 50,000 hours, while incandescent lamps have a rated life of only 2,500 hours and require 20 bulbs to maintain 50,000 hours; The total operating cost of floodlights is 70% less than incandescent lamps.
According to Lighting Science, assuming an incandescent lamp retail price of $7.99 and an LED floodlight of $90, LED floodlights can save $70 on lamp purchases. The LED floodlights save $260 a year (assuming $0.10 per kWh), plus a $70 purchase, which saves $330. Not only saves energy, but also reduces the cost of repairing and replacing the bulb. If this LED bulb is used in a large amount, the energy saving effect will be more obvious.
Lighting Science will begin mass production in June this year, with warm white, daylight, cool white, and amber (small flashing lights). Test samples will be ordered soon. 
Optical fiber jumpers (also known as optical fiber connectors), that is, optical fiber connectors that are connected to optical modules, are also available in many types, and they cannot be used mutually. The SFP Module is connected to the LC fiber optic connector, and the GBIC is connected to the SC fiber optic connector. The following is a detailed description of several commonly used optical fiber connectors in network engineering:
â‘ FC-type fiber jumper: The external strengthening method is a metal sleeve, and the fastening method is a turnbuckle. Generally used on the ODF side (most used on the distribution frame)
â‘¡SC type optical fiber jumper: the connector for connecting the GBIC optical module, its shell is rectangular, and the fastening method is a plug-in latch type, without rotation. (Most used on router switches)
â‘¢ST type optical fiber jumper: commonly used in optical fiber distribution frame, the shell is round, and the fastening method is turnbuckle. (For 10Base-F connection, the connector is usually ST type. Commonly used in optical fiber distribution frame)
â‘£LC type optical fiber jumper: the connector to connect the SFP module, it is made by the easy-to-operate modular jack (RJ) latch mechanism
R30 LED flood light impact incandescent lamp
Introduction: On April 24th, 2006, Lighting Science Group launched LED R30 floodlight with light output equivalent to 65W incandescent lamp, 50 times incandescent lamp life and 80% energy saving.