Electronics & Electrical

1. 【Easy to Use】Simply insert the Nano SIM card in the router, connect the power, and start enjoying stable and fast wireless networks.Just easily connect to WiFi whether it's your cell phone, laptop, desktop or tablet. 2. 【Converting 4G signals to LAN】There are 3 RJ45 Ethernet LAN port available which enable desktop computer access to internet via a network cable. 3.【High Gain Antenna】4 external high gain antennas greatly enhance the sensitivity of the router; it can improve the signal quality of 4G LTE and WiFi, which is convenient for establishing WiFi connection in apartments, trucks, remote mountain villages, or when temporary use of the Internet is needed. 4.【Multi-Device Sharing】The sim card dongle supports access to 32 devices. As long as there are WiFi-enabled devices, they can be connected and used, such as mobile phones, smart robots, iPads, sweeping robots, smart speakers, cameras, TVs, computers, etc. More: https://www.advancedelectricalsol , utions.biz/ https://www.article4.us/ https:/ , /www.myfreeblog.us/ https://www.chemchamp.in/ https://www.construni.com/ https://www.elecpo , wers.com/ https://www.xiahealthy.com/ https: , //www.powerllife.ru/ https://www.maelecsrl.com/ , https://www.svschem.com/ https://www.nkelec , .com/ https://www.mysportslive.net/

This is a 4G WiFi Dongle,supporting multiple 4G networks, internet sharing up to 10 wifi users. Powered by devices with USB port via such as phone charger/car charger,/power bank,etc. After inserting a SIM Card and powering it on, you can enjoy 4G network to surf the Internet anytime and anywhere. Selling Point: 1.【Instructions for Use】 It's not only a USB modem, but also a WiFi hotspot, so you can enjoy WiFi with family and friends. No need to connect to broadband,just need a 3G/4G SIM card,you can connect to network. 2.【Easy to Use】Plug and play hotspot modem, as long as there is power, you can easily go online. Simply plug directly into the laptop's USB port to transfer data. And at the same time,you can also easily connect to WiFi whether it's your cell phone, laptop, desktop or tablet. 3.【High Speed Transmission Signals】 With a wireless connection speed of up to 150Mbps, you can enjoy a powerful web experience for surfing, chatting or playing online games. The superior range. Built-in 4G/3G+WiFi antenna for optimal coverage and reliability, as well as increased signal strength, so you can enjoy a reliable wireless connection anytime, anywhere More: https://www.advancedelectrica , lsolutions.biz/ https://www.article4.us/ htt , ps://www.myfreeblog.us/ https://www.chemchamp.i , n/ https://www.construni.com/ https://www.el , ecpowers.com/ https://www.xiahealthy.com/ ht , tps://www.powerllife.ru/ https://www.maelecsrl. , com/ https://www.svschem.com/ https://www.nk , elec.com/ https://www.mysportslive.net/

Model P700 Which can change 4G wireless network to RJ45 cable network Main chip set ASR1803S Network Type FDD-LTE, TDD-LTE, WCDMA/HSPA+ Frequency Scope LTE B1/B3/B8/B38/B39/B40/B41 (More bands can be added such as B2/4/5/7/20...) TD-SCDMA B34/B39 WCDMA 2100/900MHz Data Rate LTE FDD/TDD (Cat. 4) DL 150Mbps, UL 50Mbps 3G HSPA+ DL 21Mbps, UL 5.76Mbps 3G TD-SCDMA DL 2.8Mbps, UL 2.2Mbps Support System Windows XP,Windows Vista,Windows 7,Windows 8/8.1 MAC OS X 10.7+ Ethernet network A RJ45 interface, 10/100M adaptive, Support WLAN USIM/SIM Micro SIM card slot SD Card Support Micro SD memory extension, 32GB in max LED 2G/3G/4G signal indicator light,  WIFI status indicator lamp Power supply mode DC 12V Power Input voltage: 12V/1A maximum power consumption: < 2.5W WIFI Standard Protocol: 802.11 b/g/n, up to 72Mbps WIFI Frequency 2412 MHz-2472 MHz More: https://www.advancedelectricalsolu , tions.biz/ https://www.article4.us/ https:// , www.myfreeblog.us/ https://www.chemchamp.in/ https://www.construni.com/ https://www.elecpow , ers.com/ https://www.xiahealthy.com/ https:/ , /www.powerllife.ru/ https://www.maelecsrl.com/< , br>https://www.svschem.com/ https://www.nkelec. , com/ https://www.mysportslive.net/

The double concave lenses with the negative focal length, these lenses are used in Beam Expanders, optics image, laser system and so on. Sunday — Bi Concave Lens Specifications Structure: Bi Concave Lens Material: Optical glass, UVFS, Germanium, Silicon, CaF2, MgF2, ZnSe ZnS, Sapphire Diameters Available: 0.5mm to 600mm Diameter Tolerance: +0.00/-0.01mm or customer design Surface Quality: 10-5 Surface Irregularity: λ/10 PV @632.8nm or customer design Thickness tolerance: +0/-0.01mm Clear Aperture: >90% of Diameter Chamfer: 0.05-0.5mmx45degree Centeration: <10 arcsec Coating: Single Mag2, Multiple Layers AR Coating A: 350-650nm B: 650-1050nm C: 1050-1585nm D: Customer Design

Achromatic Doublet Lens Achromatic lenses are cemented with two lenses mainly used to reduced values of spherical aberration, coma and chromatic aberration. Sunday offer positive achromatic lenses and negative achromatic lens with coatings Case Study Axial and vertical color difference Axial chromatic aberration arises from the difference in refractive index of the same material for different wavelengths of light, resulting in varying optical focal degrees. While lateral chromatic aberration is caused by the different magnification ratios of the same material for different wavelengths of light. In essence, all of this is due to the different refractive indices of the same material for different wavelengths of light. The function of the double-coated lens 1. The core method for eliminating aberrations 2. The key design for correcting color differences 3. An important way to optimize the optical system learn more

Spherical Lenses Manufacturer - Sunday Optics Changchun Sunday Optics Co., ltd manufactures Hundreds of thousands of Spherical lens every year for Thermal image, Measuring equipment, Telescope, Camera and so on. We can make customized . Contact us, we will offer you best plan. Spherical lenses are optical lenses with one or more curved surfaces designed to converge or diverge light, alter its propagation path, and control wavefront curvature. They are fundamental optical components in a wide range of optical systems and are widely used in medical imaging, laser optics, security monitoring, the automotive industry, defense, aerospace, and other high- technology applications. Sunday Optics offers a full range of customized spherical lenses, including plano-convex, plano-concave, bi-convex, bi-concave, meniscus, and achromatic lenses, manufactured to your exact specifications. We also provide tailored optical coatings to meet specific performance, durability, and environmental requirements.

● Optical System Architecture Design ● Structural Design ● Stray Light Analysis ● Structural and Fluid Simulation ● Tolerance Analysis ● Yield Analysis Optical design is a systematic process aimed at fulfilling requirements related to imaging quality, operational conditions, and cost-effectiveness by defining the structural parameters and performance specifications of optical systems. The process involves two primary stages: preliminary design and aberration correction. During the preliminary design phase, conceptual schematics are developed and external dimensions are calculated. The aberration correction phase focuses on determining critical parameters such as lens curvature and thickness to optimize optical performance and minimize imaging distortions. learn more

Optical assemblies bring together multiple components to form complete, high- performance optical systems. These assemblies are designed to support common optical and laser functions such as mounting, alignment, beam manipulation, and focusing. By integrating matched components into a single assembly or kit, optical assemblies often provide a more cost-effective and efficient alternative to sourcing and assembling individual parts. Sunday Optics helps reduce development time while maximizing system performance. Our optical alignment and assembly capabilities support a wide range of applications, including precision mounting, accurate alignment, beam shaping, and focusing. High-efficiency optical systems rely on carefully matched components and tight tolerances. Our assembly area is staffed by highly skilled technicians with extensive experience in optical alignment and system integration. We understand the critical importance of axial alignment and precise optical path control, and our team is proficient in optical bonding and sonic welding techniques to support complex assembly requirements. From the earliest project stages, our optical design and opto-mechanical engineering teams work closely with customers to deliver solutions optimized for both performance and cost. We offer a complete in-house assembly program supported by strong technical expertise, advanced optical assembly manufacturing technology, and rigorous quality standards. Our custom opto-mechanical assembly services combine design, precision manufacturing, detailed assembly testing, and metrology to ensure reliable, repeatable results. State-of-the-art cleanroom facilities further protect the precision and performance of sensitive optical and opto-mechanical systems. Optical assemblies may include lenses (objective, scan, and tube lenses), mirrors, prisms, freeform and aspheric optics, beam expanders, camera modules, light sources, sensors and detectors, projection screens, dispersive elements, filters, thin-film coatings, and fiber optic bundles—integrated into complete systems ready for deployment.

Aerodynamic Glass Disc Suspension Insulator is engineered for overhead transmission lines operating in desert, high wind, and sandstorm-prone regions. Its optimized open aerodynamic profile minimizes sand accumulation, reduces wind resistance, and enhances long-term insulation performance under harsh environmental conditions. Manufactured from toughened low-alkali glass with a cap and pin suspension structure, this glass insulator type is widely applied in transmission corridors across arid and semi-arid climates. Designed for Desert and High Wind Environments Transmission infrastructure in desert regions faces unique operational challenges: Sandstorm exposure High wind velocity

High voltage fog type glass disc suspension insulator designed for coastal, desert, and industrial pollution areas. Reliable anti-pollution performance for transmission line projects. Bulk supply available. Designed for High Contamination Transmission Environments Transmission systems in coastal regions and heavy industrial zones face continuous exposure to salt spray, airborne particles, and moisture. Utilities and grid operators such as National Grid and State Grid Corporation of China require insulators that maintain dielectric integrity under pollution stress. Fog type profiles are developed to: Increase effective creepage distance Reduce surface leakage current under wet contamination Minimize flashover risk during fog or salt mist conditions Maintain stable insulation performance in strong wind areas

Glass insulator is a device used to support and insulate electrical wires. It is made from toughened glass, which enhances its strength and durability. In modern power grids operated by organizations such as National Grid and State Grid Corporation of China, glass insulators must maintain electrical integrity under heavy mechanical load, pollution stress, wind vibration, and temperature fluctuation. Our glass disc suspension insulators are designed to: Withstand high tensile and compressive mechanical loads Maintain stable dielectric performance under pollution conditions Provide consistent creepage distance for long-term reliability Operate safely in 33kV–500kV transmission systems

Our 55-5 porcelain pin insulator is engineered for high performance in medium and high voltage applications. Manufactured according to ANSI C29.5 standards and certified with ISO9001 and TUV, this porcelain insulator provides durable, long-lasting electrical insulation for overhead power lines and utility infrastructure. Place of Origin Hebei, China Brand Name js Model Number 55-5 Pin type Insulator Type Insulator Material Porcelain Application High Voltage Rated Voltage 15KV Tensile Strength 13.6KN Color White and Brown Product Name 900CD pin procelain insulator Certification ISO9001, IOS14001, TUV

Our ANSI 52-3 porcelain disc suspension insulator is engineered for high- voltage overhead power transmission lines, ensuring reliable insulation and mechanical support. Designed to meet ANSI C29.2 standards, this porcelain insulator is ideal for utility infrastructure projects requiring durability and performance. Suspension type insulators mechanically hold the conductor thus isolating it from contact with land and other conductors. Ziyong suspensions support mechanical and electrical charges ranging from 10,000 to 50,000 lbs. and are available in all tension levels, for both distribution and transmission systems. Porcelain suspensions are specifically designed to comply with ANSI Class (C29.2-1992) standards, ensuring the performance of both the electrical and mechanical functions, as well as to satisfy all dimensional specifications and applicable requirements. ANSI 52-3 Porcelain Disc Suspension Insulator Prameters Ball and socket type suspension porcelain insulators ANSI Class 52-3 52-5 52-8 52-11 Coupling size Type B Type J Type K Type K Dimensions Diameter(D) mm 254 254 254 280 Spacing(H) mm 146 146 146 155 Creepage distance mm 320 320 320 380 Dry arcing distance mm 197 197 197 216

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Minimum Order: 1 bags