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| Form Factor | Part No. | Fiber Type | Data Rate | Wavelength | Distance | Connector | Case Temperature | Note |
| SFP | CLSFP15GEZXB44 | SMF | 1.25G | 1550nm | 44dB | LC | Com./Ind. | |
| SFP | CLSFP15GE180D | SMF | 1.25G | 1550nm | 180km | LC | Com./Ind. | |
| SFP | CLSFP15GEZXD150 | SMF | 1.25G | 1550nm | 150km | LC | Com./Ind. | |
| SFP | CLSFP15GEZXD120 | SMF | 1.25G | 1550nm | 120km | LC | Com./Ind. | |
| SFP | CLSFP15GEZXD | SMF | 1.25G | 1550nm | 80km | LC | Com./Ind. | |
| SFP | CLSFP15GEEXD | SMF | 1.25G | 1550nm | 40km | LC | Com./Ind. | |
| SFP | CLSFP13GEEXD | SMF | 1.25G | 1310nm | 40km | LC | Com./Ind. | |
| SFP | CLSFP13GEEX | SMF | 1.25G | 1310nm | 40km | LC | Com./Ind. | |
| SFP | CLSFP13GELXD | SMF | 1.25G | 1310nm | 20km | LC | Com./Ind. | |
| SFP | CLSFP13GELX | SMF | 1.25G | 1310nm | 20km | LC | Com./Ind. | |
| SFP | CLSFP85GESXD-2K | MMF | 1.25G | 850nm | 2km | LC | Com./Ind. | |
| SFP | CLSFP13GESXD | MMF | 1.25G | 1310nm | 550m | LC | Com./Ind. | |
| SFP | CLSFP85GESXD | MMF | 1.25G | 850nm | 550m | LC | Com./Ind. | |
| SFP | CLSFP85GESX | MMF | 1.25G | 850nm | 550m | LC | Com./Ind. | |
C-LIGHT 1.25G SFP optical transceivers provide a standard pluggable solution for Gigabit-class fiber networking. Supporting data rates up to 1.25Gbps, the product family covers a broad range of optical configurations for network equipment interconnection, data centers, enterprise networks, campus infrastructure, and other fiber-based applications.
The portfolio includes multimode and single-mode fiber versions with transmission distances ranging from 550m to 180km. Optical configurations are available at 850nm, 1310nm, and 1550nm, allowing the module to be matched to different fiber types, link lengths, and network architectures.
The 1.25G SFP platform supports transmission rates up to 1.25Gbps for compatible Gigabit-class optical network applications.
The product family covers short-reach links as well as extended-distance fiber connections up to 180km.
850nm configurations are available for short-distance multimode fiber connections, including 550m applications.
1310nm versions provide 550m, 20km, and 40km configurations for different optical network requirements.
1550nm configurations cover 40km, 80km, 120km, 150km, and 180km transmission distances, including an extended 44dB configuration.
The product range includes both multimode and single-mode fiber configurations for short- and long-distance deployments.
The compact SFP package provides a widely adopted pluggable interface for compatible networking equipment.
The listed configurations use LC connectors for integration with compatible fiber optic cabling systems.
The 1.25G SFP provides optical connectivity for Gigabit Ethernet equipment and fiber-based network links.
The modules can connect compatible switches and other network devices across different fiber distances.
Short- and medium-distance configurations can be used for optical interconnection between compatible data center equipment.
The standard SFP interface makes the product suitable for enterprise network deployments requiring dependable fiber connectivity.
Multiple transmission options allow the modules to connect network equipment located across buildings and campus fiber infrastructure.
The modules can support optical connectivity in cloud and computing environments where Gigabit-class fiber links are required.
The 80km, 120km, 150km, and 180km configurations provide options for extended single-mode fiber transmission.
The broad selection of optical reaches allows existing fiber networks to be expanded with modules matched to the required link distance.
With configurations ranging from 550m to 180km, the product family can address both local equipment connections and long-distance fiber routes.
850nm, 1310nm, and 1550nm versions provide flexibility when selecting a module according to fiber type and transmission distance.
Both multimode short-reach products and single-mode extended-reach products are available within the same 1.25G SFP family.
The 1550nm 180km configuration provides an option for very long single-mode fiber links beyond conventional metropolitan reach.
The SFP form factor provides a practical option for compatible switches and network equipment without requiring a specialized optical interface.
C-LIGHT states that its 1.25G SFP optical modules are compatible with switches from more than 100 brands.
C-LIGHT states that every module undergoes initial testing, final testing, and factory inspection through a three-step quality-control process.
C-LIGHT provides customized optical solutions, compatibility testing, technical guidance, spot supply, and long-term maintenance services.
A 1.25G SFP optical transceiver is a compact pluggable fiber optic module designed for network equipment requiring optical transmission rates up to 1.25Gbps.
C-LIGHT lists configurations covering 550m, 2km, 20km, 40km, 80km, 120km, 150km, and 180km, as well as a 1550nm 44dB configuration.
The product family includes 850nm, 1310nm, and 1550nm optical configurations depending on the selected transmission distance and fiber type.
Yes. C-LIGHT provides multimode configurations for short-distance links and single-mode configurations for longer optical transmission.
The listed 1.25G SFP configurations use an LC optical connector.
According to C-LIGHT, the communication protocol complies with IEEE 802.3x, IEEE 802.3z, and IEEE 802.3ab, the interface protocol complies with SFF-8472, and the packaging protocol follows SFP MSA.
Yes. C-LIGHT lists a 1550nm single-mode 1.25G SFP configuration with a transmission distance of 180km.
Yes. C-LIGHT provides customized optical solutions based on transmission distance, wavelength, fiber type, equipment compatibility, and other deployment requirements.
C-LIGHT 1.25G SFP optical transceivers provide a versatile platform for Gigabit Ethernet and other fiber networking applications. With multimode and single-mode options, 850nm, 1310nm, and 1550nm wavelengths, and reach configurations extending from 550m to 180km, the product family can support a wide range of network architectures. The standard SFP form factor, LC interface, broad equipment compatibility, and customized service options make the series suitable for data centers, enterprise networks, campus infrastructure, and long-distance fiber connections.
Contact Us●100% of products pass initial test, final test and factory inspection.
●3-step quality control management process.
●100% complete implementation of customer order quality requirements.
●100% guarantee of customer product data information security.
Please contact us to download the certification certificate.
Please Note: Installing a third party transceiver does not void your network equipment warranty. Network equipment manufacturers all have guidelines stating that warranty support on their products will not be affected.
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