The G-energy J200V4.2 GS Switching Power Supply is a 200W high-efficiency LED power solution with 4.2V 0-40A stable output, 88% conversion efficiency and multiple safety protections, specially engineered for reliable power supply of various LED display screens. Boasting a compact slim design, self-cooling mode and a wide working temperature range of -30°C to 50°C, this SMPS complies with GB 4943 and EN 60950 international standards, ideal for indoor and outdoor LED display applications with strict space and environmental requirements.
The G-energy J200V4.2 GS is a high-performance switching power supply specially designed for LED display systems, integrating the advantages of compact size, high energy efficiency, stable operation and reliable performance. Equipped with an advanced synchronous rectifier circuit, it significantly improves power conversion efficiency and reduces energy consumption. With a rated power of 200W, it stably outputs 4.2V DC voltage and supports a maximum output current of 40A, making it an ideal power supply solution for various indoor and outdoor LED display scenarios that require stable and efficient power support.
Core Advantages
High Efficiency & Energy Saving: Adopts an advanced synchronous rectifier circuit, which greatly enhances power conversion efficiency. Under the condition of 220V AC input and full load at room temperature, the efficiency is as high as 86% or more, effectively reducing energy consumption and operating costs, and meeting international energy-saving and environmental protection requirements.
Stable Input & Strong Compatibility: Supports a nominal input voltage range of 200~240V AC, compatible with an input frequency of 50~60Hz, which can perfectly adapt to the power grid conditions of most regions. It is recommended to refer to the input voltage and load relationship curve for use, ensuring stable operation even in slightly fluctuating power supply environments.
Stable Output & Excellent Display Effect: Stably outputs 4.2V DC voltage with a voltage regulation accuracy of ±5% and a load regulation rate of ±2%. The output ripple and noise are ≤200mVp-p (tested at 25℃) and ≤200mVp-p (tested after 30 minutes of full-load operation at -25℃), ensuring uniform brightness of the LED display screen without flicker and effectively improving the visual experience of the display terminal.
Comprehensive Safety Protection: Equipped with multiple safety protection functions such as input undervoltage protection, output current limiting protection and output short circuit protection. These protection mechanisms can quickly respond to abnormal working conditions, effectively preventing damage to the power supply and connected LED display equipment, and ensuring the safe and reliable operation of the entire system.
Extreme Environmental Adaptability: Designed to operate stably in an ultra-wide temperature range of -40℃~+70℃ (please refer to the environmental temperature and load relationship curve for use), and the storage temperature range covers -40℃~+85℃. It can adapt to a relative humidity of 10%~90% and an atmospheric pressure of 80~106 Kpa, and can withstand harsh environmental conditions such as high temperature, low temperature and high humidity, making it suitable for various complex indoor and outdoor application scenarios.
Quiet Operation & Long Service Life: Adopts natural cooling (conduction cooling) method, without a cooling fan, which avoids noise pollution caused by fan operation and equipment failure caused by fan dust jamming. The product uses high-quality components and mature circuit design, and undergoes strict full-load aging and quality inspection before leaving the factory, ensuring long-term stable operation and excellent reliability.
Application Scenarios
As a professional LED display dedicated power supply, the G-energy J200V4.2 GS is widely applicable to various LED display systems and related fields that require 4.2V DC stable power supply, including:
Indoor LED Displays: Shopping mall guide screens, airport/subway terminal information screens, hotel lobby display screens, cinema advertising screens, monitoring center display walls, etc.;
Outdoor LED Displays: Outdoor advertising billboards, square display screens, road traffic information screens, building curtain wall LED displays, etc.;
Other LED Equipment: LED light boxes, LED stage background screens, exhibition hall display systems and other LED lighting and display equipment that match the power supply parameters.
Detailed Technical Specifications
Parameter Category
Specific Parameters
Power Supply Type
AC-DC LED Dedicated Switching Power Supply (Closed Encapsulation)
Input Parameters
Nominal Input Voltage Range: 200~240V AC; Input Frequency Range: 50~60Hz; Maximum Input Current: ≤1.8A (cold state @220Vac); Start-up Inrush Current: ≤70A (cold state @220Vac); Efficiency: ≥86% (220Vac input, full load @25℃)
Output Parameters
Rated Output Voltage: 4.2V DC; Rated Output Power: 200W; Output Current Range: 0~40A; Voltage Regulation Accuracy: ±5%; Load Regulation Rate: ±2%; Output Ripple & Noise: ≤200mVp-p (at 25℃); ≤200mVp-p (after 30 minutes of full-load operation at -25℃); Start-up Output Delay: ≤3.0S (220Vac @25℃); Output Voltage Rise Time: ≤100ms
Protection Functions
Input Undervoltage Protection, Output Current Limiting Protection, Output Short Circuit Protection
Physical Specifications
For detailed dimensions, please refer to the official product drawing; Net weight: Subject to actual product (lightweight design)
Operating Environment
Operating Temperature: -40℃~+70℃ (refer to environmental temperature and load relationship curve for use); Storage Temperature: -40℃~+85℃; Relative Humidity: 10%~90%; Atmospheric Pressure: 80~106 Kpa
Certification & Standards
Complies with relevant international and national safety and electromagnetic compatibility standards; For detailed certification information, please consult the official
Other Parameters
Cooling Method: Natural Cooling; Production Origin: Made in China; Official Website: HTTP://WWW.G-ENERGY.CN
Installation and After-sales
Installation Instructions
The product adopts direct installation method, and the terminals are clearly marked (Input: L/N; Output: V+/V-). Please use matching mounting screws during installation to ensure firm fixation and avoid loosening caused by vibration;
Before power-on, carefully check the wiring to ensure correct connection of input and output, AC and DC, positive and negative poles, and no short circuit at input and output ends. It is recommended to refer to the input voltage and load relationship curve, and conduct a no-load test first to confirm normal operation before connecting to the load;
When storing and installing, please follow the storage requirements: the product should be stored in the original packaging, the warehouse should be free of harmful gases, flammable, explosive and corrosive chemical products, and free of strong mechanical vibration, impact and strong magnetic fields. The packaging box should be at least 20cm away from the ground and 50cm away from walls, heat sources, windows or air inlets;
To ensure heat dissipation effect, reserve sufficient heat dissipation space around the product during installation, and avoid blocking the heat dissipation surface;
For safe use, ensure reliable grounding of the ground terminal (if equipped) to reduce electromagnetic interference and ensure personal and equipment safety.
After-sales Guarantee
The product provides a 1-year warranty service. During the warranty period, free repair or replacement can be enjoyed for non-human damage. The warranty period starts from the date of delivery;
All products have passed strict full-load aging and quality inspection before leaving the factory. If there is any quality problem within the warranty period, please contact customer service in time and provide the product model, production date and other relevant information;
Professional technical team provides 24/7 online technical support, including installation guidance, wiring consultation, fault diagnosis and other services. For more information, please visit the official website: HTTP://WWW.G-ENERGY.CN;
Supports bulk purchase with exclusive discount. The delivery cycle is 1-5 working days. It supports various payment methods such as L/C, T/T, etc. For details, please consult online customer service.
