Modern electronic devices—from your desktop PC to rack-mounted servers—rely on switching power supplies. While these supplies are compact and efficient at converting AC mains to stable DC voltages, they inherently draw current in a way that wastes energy and pollutes the power grid. Power Factor Correction (PFC) is the essential technology that solves this problem. In this article, we draw on decades of combined power design experience to explain what PFC is, why it matters, and how evolving regulations and semiconductor advances are reshaping PSU design.

In LED lighting projects, the driver is the core component that determines system stability, light quality, and lifespan. Choosing the wrong model can not only cause flickering and premature light decay but may also lead to overheating, protection failures, and even safety hazards. This guide focuses on our two flagship series—the LPV and LDV series—covering everything from basic knowledge and practical selection to customization services, to help our international clients configure the right solutions and shorten project implementation timelines.

With the declining cost of solar power generation and growing environmental awareness, more and more people are turning their attention to off-grid photovoltaic systems. Whether for independent power supply in remote areas or as a backup power source for rural homes, a well-designed photovoltaic system can provide stable electricity for daily life. Within the system, the pure sine wave inverter serves as the core component connecting the battery to AC loads; its proper selection and integration directly impact the system’s performance and lifespan. From a practical application perspective, this article outlines key considerations for selecting pure sine wave inverters in off-grid PV systems, highlights important pairing considerations, and showcases Leyu’s practical experience in this field.

Power is the lifeblood of any electronic system. But when that system operates outdoors or in harsh industrial environments, moisture becomes its most relentless enemy. Data shows that over 70% of outdoor power supply failures stem from moisture ingress or rainwater penetration. One moment of water exposure can trigger short circuits, corrode internal components, and bring entire operations to a halt.

This is where waterproof switching power supplies come into play—engineered to deliver stable, efficient power conversion while keeping water, dust, and humidity firmly at bay.

Whether you're designing outdoor LED lighting, securing perimeter surveillance systems, or automating factory floors, understanding waterproof power supply technology is essential.

A solar panel parallel connector designed for extending and optimizing your solar panel setup. I'll explain when and why to use it, how it works, and whether it's a good choice for your solar power system.

In modern industrial control systems, a stable and efficient DC power supply is critical. The LEYU ZDR5 is a DIN rail power supply that delivers 12V 24V 48V with an efficiency exceeding 88%. Designed for 35mm DIN rail mounting, it offers snap‑in installation, wide input range, and comprehensive protections – making it an ideal choice for factory automation, PLC systems, and panel building.

Leyu Cable Ties offer a reliable solution for organizing and securing cables and wires across diverse applications. Manufactured from premium nylon (polyamide), these ties combine high tensile strength, long service life, and resistance to environmental stressors — making them suitable for both routine indoor use and demanding outdoor installations.

In solar photovoltaic systems, connectors, though small in size, play a crucial role in current transmission. Among them, MC4-compatible connectors have become the industry de facto standard due to their excellent waterproof and dustproof performance and reliable locking mechanism. This article will provide a comprehensive analysis of the technical features, application scenarios, and selection considerations of these connectors, helping you make better decisions for photovoltaic projects.

In the rapidly evolving landscape of industrial automation, one constant remains: the need for stable, reliable DC power. As control cabinets become more compact and the demand for high-performance power solutions continues to grow, choosing the right power supply has never been more critical. The WDR-120 series from LEYU these challenges head-on, delivering 120 watts of regulated output power in an ultra-slim 40mm DIN rail housing.

Engineered for industrial control systems, factory automation, semiconductor fabrication equipment, and a wide range of electromechanical applications, the WDR-120 series combines high efficiency, wide input range capability, and comprehensive protection features in a space-saving design. This article explores the key features, technical specifications, and applications of the WDR-120 series, helping you understand why it stands out in the crowded DIN rail power supply market.

When installing a power supply system, especially in scenarios involving battery connections, reversing the positive and negative terminals is a common yet fatal mistake. In traditional switch-mode power supplies, if the polarity is reversed, it may merely blow a fuse at the mildest, or damage the entire circuit board at worst, causing equipment downtime and high maintenance costs.

The SCP series switch-mode power supplies are specifically designed to address this issue, with built-in battery polarity protection (implemented through a fuse). Even if the positive and negative terminals are reversed, the core circuit will not be damaged, and normal operation can be restored simply by replacing the fuse. Additionally, it integrates triple protection against short circuits, overloads, and overvoltage, along with intuitive LED power indicators, making it the ideal choice for battery-powered systems.

The MC4 is a single-core, waterproof DC connector with a self-locking mechanism. It is widely used in solar photovoltaic systems to provide fast and reliable connections between photovoltaic modules, as well as between modules and equipment such as inverters and combiner boxes.

In modern life, whether it is RV travel, outdoor work, or a household emergency power supply, having a reliable power system is crucial. However, many users find that ordinary inverters, while capable of lighting up a bulb, cannot start a refrigerator compressor and may even damage sensitive medical equipment or laptops.

This is exactly why you need a 2000W pure sine wave inverter. It not only provides powerful output but also simulates the clean waveform of mains electricity, ensuring that every one of your devices can operate safely and efficiently.