【Date: 2018/10/10】Free Seminar LED Lighting Fixture Exhibition & Explosion-Proof Lighting Industry Technical Seminar (Iwakuni City)

Reliability in explosion-proof areas is guaranteed, and glare reduction and high color rendering improve work efficiency! Compared to our conventional fluorescent fixtures, power consumption is reduced by approximately 55%!

Introducing the new explosion-proof LED lamp series, the 'LZBA series', designed to meet the high reliability required in explosion-proof areas and suitable for use in explosive hazardous locations Zone 1 and Zone 2! While equipped with high output equivalent to fluorescent lamps, we have achieved approximately 55% reduction in power consumption, from 91W to 40.5W compared to our conventional explosion-proof fluorescent fixtures. Additionally, we have reviewed the design of the LED module and housing, achieving a lightweight and compact form. With glare reduction and high color rendering (Ra83), it also contributes to improving the working environment. ★ Zone 1 (Class 1 location): Areas where explosive atmospheres may be generated during normal operation of plants, etc. ★ Zone 2 (Class 2 location): Areas where explosive atmospheres are not expected to be generated during normal operation of plants, etc., and even if they were to occur during abnormal conditions, they would only exist for a short time. 【Features】 ■ Three types to choose from (equivalent to 1-lamp and 2-lamp for FHF32W high output type, equivalent to FHF16W high output type) ■ Achieved approximately 27% weight reduction for 2-lamp use and approximately 21% for 1-lamp use compared to our conventional explosion-proof fluorescent fixtures ■ Size reduction of about 33% for the 1-lamp type *For more details, please refer to the materials. Feel free to contact us with any inquiries.

• Cord Pendant
• Waterproof, moisture-proof, explosion-proof lighting fixtures
• Lighting Planning

Despite its compact design, it achieves a wide and uniform light distribution without unevenness. Energy-saving, long lifespan, lightweight. Compact & Smart.

Adopts high-efficiency white LEDs. Achieves wide light distribution despite being so compact. Smart lighting that illuminates the sidewalk. LED sidewalk lighting fixture DELGA-mini Width approximately 300mm, thickness approximately 100mm.

• Dam construction
• Civil Engineering Company
• Lighting Planning

A smart remote monitoring tool that packages communication functions into one. No complicated installation work is required; simply turn on the power to start recording immediately.

The surveillance camera S-BOX from Hoshi and Denki monitors various risks remotely, providing "safety" and "peace of mind" 24 hours a day. S-BOX thoroughly monitors and quickly verifies any issues at all sites, including: - Accidents and theft - Illegal dumping - Squatting - Abnormal troubles - Natural disasters - High waves and flooding - River flooding due to heavy rain - COVID-19 measures Its implementation is expanding across various industries: - Transportation and logistics - Construction - Warehousing and logistics - Agriculture You can monitor "sites" across the country collectively using your devices (computer, smartphone, tablet), allowing you to upgrade your company's operational efficiency at a low cost. *For more details, please refer to the materials. Feel free to contact us with any inquiries.

• Security cameras and surveillance systems
• Facility Management System
• Internet System

Explosion-proof LED lighting fixtures LZLA series, ideal for replacing incandescent lamps and circular fluorescent lamps in explosion-proof areas.

New Release of Explosion-Proof LED Lighting Fixtures (LZLA Series) Seiwa Electric Co., Ltd. has enhanced its lineup of LED lighting fixtures under the <Star Reds> series to meet diverse needs in the introduction of energy-saving equipment at various factories and initiatives for the environment (Minamata Convention). We are pleased to announce the addition of the new explosion-proof LED lighting fixtures "LZLA Series," which can be used in explosive hazardous areas Zone 1 and Zone 2, equivalent to incandescent lamps (100W, 200W) and high-output FHF32W (circular and compact fluorescent lamps). Orders will begin on May 15. The main body of the fixture employs aluminum die-casting, which excels in heat dissipation and lightweight design, allowing for effective heat dissipation measures. This increases the operating temperature range to -20°C to +50°C (compared to our conventional LED products, which are -20°C to +40°C) and enhances resistance to high-temperature environments. Additionally, it achieves a maintenance-free LED module lifespan of 60,000 hours while also possessing high durability and weather resistance.

• Waterproof, moisture-proof, explosion-proof lighting fixtures
• Lighting Planning

Explosion-proof LED lighting fixtures using straight LED lamps compliant with the International Harmonized Explosion Protection Guidelines 2008 standard for explosion-proof areas such as chemical plants.

Launch of explosion-proof LED lighting fixtures (LZAB series) These LED lighting fixtures can be installed in explosion-proof areas such as chemical plants, oil refineries, and hydrogen stations. The light source (lamp) can be replaced independently, allowing for reduced capital investment during lighting equipment updates compared to conventional integrated LED lighting fixtures. Additionally, it achieves brightness equivalent to a high-output 2-lamp FHF32 type while reducing power consumption by approximately 36% compared to traditional fluorescent lamps (based on our estimated conditions). It is suitable for explosion-proof performance in Zone 1, Zone 2 areas, and hydrogen areas. ■ Product Features ○ Achieves brightness equivalent to a high-output 2-lamp FHF32 type, with power consumption reduced by approximately 36%. ○ Uses straight LED lamps as the light source. ○ Lamps can be replaced using the same method as conventional light sources (FLR/FHF). ○ Compatible with Zone 1, Zone 2 areas, and hydrogen areas.

• Waterproof, moisture-proof, explosion-proof lighting fixtures
• Lighting Planning

Numerous lighting options that can withstand harsh environments! Explosion-proof and hydrogen sulfide-resistant products also help prevent workplace accidents.

Sewage treatment facilities, where water is always present, create a harsh environment for electrical equipment. Additionally, hydrogen sulfide and biogas (methane) generated from wastewater can directly lead to occupational hazards. Our company offers a wide range of LED lighting fixtures with high waterproof and moisture-proof performance, including flood-resistant types that can handle temporary flooding caused by sudden heavy rains. We also conduct tests to confirm performance against corrosion from hydrogen sulfide, taking into account the facility and its installation environment. 【Features】 ■ High waterproof and moisture-proof performance ■ High reliability due to excellent weather resistance ■ Performance confirmed through testing as a countermeasure against hydrogen sulfide ■ Explosion-proof standards compliant with "International Guidelines and Technical Standards for Explosion Protection" *For more details, please refer to the materials. Feel free to contact us with any inquiries.

• Ballasts and fixture accessories

Waterproof type LED lighting fixture, featuring a lightweight design with a polycarbonate housing.

Waterproof LED lighting fixture LYWA type The use of polycarbonate resin in the housing achieves weight reduction, improving workability. It is resistant to shattering and contributes to preventing foreign material contamination. It is ideal for food factories, pharmaceutical plants, and semiconductor factories.

• Waterproof, moisture-proof, explosion-proof lighting fixtures
• Lighting Planning

We will be exhibiting at the "Financial International Information Technology Exhibition" FIT Osaka 2026, which will be held at Grand Front Osaka on September 3 (Thursday) and September 4 (Friday). We will introduce the features of our human resources information system "Fellowship," which includes various functions useful for HR department operations, such as personnel management, payroll, and employment.

Our company will invite professors who are active at the forefront of university research to hold a web technology course in the construction field. This time, as a follow-up to "The Effects and Design Considerations of Shield Tunnels in Proximity and Adjacent Situations - Part 1," which was published in July, we will have a lecture by Professor Noriyuki Horiuchi from Kokushikan University. In "Part 1," we explained the phenomena of the effects caused by proximity and adjacent shield tunnels, using examples of left-right adjacency and passing beneath existing tunnels, as well as the basic concepts of numerical evaluation. In "Part 2," we will focus on the vertical adjacency of large-section shields. We will introduce analytical methods for numerically evaluating the impact on existing tunnels, surrounding ground, and existing underground structures, using actual site measurement data and FEM sequential excavation analysis, specifically in cases where large-section shields are constructed above or below existing tunnels. We will also discuss methods for predictive analysis, design, and construction considerations. This course will be beneficial for those studying for the "Professional Engineer Examination," so please take this opportunity to participate. Additionally, this course is a CPD accredited program by the Japan Society of Civil Engineers (planned), and you can also participate as part of engineer education. We sincerely look forward to your participation.

In this webinar, we will clearly explain effective operational methods based on media characteristics, timing for posting, and points for improvement after publication. It is not only important to "collect applications" in recruitment. To prevent mismatches and early turnover after hiring, it is crucial to review the entire recruitment process, including how job information is conveyed and what to confirm during the selection process. Therefore, we will also introduce how to design the recruitment process to prevent discrepancies in understanding with job seekers and to enhance retention rates. Additionally, in small and medium-sized enterprises with few recruitment personnel, the workload involved in creating job postings, responding to applicants, and measuring effectiveness can become a significant burden. We will also explain how to systematize and streamline media operations to make recruitment tasks more efficient, allowing continuous recruitment activities even with limited personnel. Finally, based on the content introduced this time, we will organize and convey specific improvement actions that can be implemented starting tomorrow. Even companies that find it difficult to increase their recruitment budget may have the potential to enhance recruitment outcomes by reviewing their choice of job media, job postings, operational methods, and recruitment processes.

Our company will be exhibiting at the on-site DX EXPO【Autumn】held at Makuhari Messe, in collaboration with Japan Comsys Corporation, TOSYS Corporation, NDS Corporation, and Tomei Communication Industry Corporation, as part of the Comsys Group. This exhibition is held within the "Japan DX & AX Week" and is a specialized exhibition where the latest solutions supporting digital transformation (DX) such as image processing AI, remote monitoring, and robotics gather for those working in various fields such as construction sites and factories. We will also be introducing various AI-powered solutions from our company. Exhibited Products: - Collaborative solutions from various companies (AIJO Site Monitor 'Bear Detection Solution') - AI rebar shape measurement system 'AIJO Rebar King -AIJO HiKing-' - AI monitoring solution 'AIJO Site Monitor' - Safety gear inspection before work 'AIJO Safety' - Product appearance inspection solution for manufacturing industry 'AIJO Check AItem' - Automated drone inspection service for solar power plants 'AIJO Check Solar' and more.

JMP is software that not only excels in statistical analysis and graph creation but also has robust features for experimental design. By utilizing experimental design, efficient data collection can be achieved while minimizing time and costs. In this seminar, we will focus on the features of experimental design, specifically the sample size explorer and Bayesian optimization, and demonstrate examples of their application in the manufacturing industry. 【Overview】 First half: Utilization of t-tests in the manufacturing industry and simulation of required data numbers We will explain the overview and examples of t-tests, which are used for various purposes in the manufacturing industry, and present analysis examples using JMP. Additionally, we will introduce a method to simulate the relationship between the required data numbers for t-tests and statistical power using the sample size explorer. Second half: How to utilize JMP Pro Bayesian optimization – Application to simulation experimental data The Bayesian optimization platform is originally designed for experimental data that includes measurement errors, but there is also a strong demand to apply it to simulation experimental data that does not contain errors, such as CAE. In this seminar, we will introduce approaches for utilizing Bayesian optimization with simulation experimental data.