January 06, 2026
PSW Series and PSW Multi Series Second to None, Dominating Mid/Low Power Ranges

By Randy Bloom
The GW Instek PSW Series and PSW-Multi Series power supplies offer exceptional performance and versatility for a wide range of testing applications. Designed for both laboratory and industrial environments, the PSW Series provides precise voltage and current regulation in a compact, user-friendly design, making it ideal for powering single devices or components with high accuracy and stability. For more complex testing needs, the PSW-Multi Series offers multiple independent or synchronized outputs, enabling efficient testing of multi-stage systems or devices. Both series are ETL certified, ensuring reliable performance, advanced features, and adherence to stringent safety standards. With their ease of use, ETL certification, and flexibility, these power supplies are perfect solutions for engineers and technicians seeking precision and trustworthiness in power supply applications.
What is ETL?
ETL stands for Electrical Testing Laboratories, which is a safety certification mark awarded by Intertek, a global inspection, product testing, and certification organization. The ETL Mark signifies that a product has been tested and meets recognized safety standards, such as those set by Underwriters Laboratories (UL), CSA (Canadian Standards Association), or other relevant standards organizations, depending on the product's intended market.

The PSW series is a single-output multi-range programmable switching DC Power Supply covering a power range up to 1080W. This series of products include eighteen models with the combination of 30 V, 40 V, 80 V, 160 V, 250 V, and 800 V rated voltages and 360 W, 720 W and 1080 W maximum output powers. The multi-range feature allows the flexible and efficient configuration of voltage and current within the rated power range.https://www.gwinstek.com/en-global/products/detail/PSW-Series


The PSW-multi series is a dual-channel or triple-channel wide range output programmable switching DC power supply. The maximum output power can reach 1080W. There are 13 dual-channel models with a rated power of 720W, and 24 triple-channel models with a rated power of 1080W. The rated voltages of low voltage modules are 30 V, 40 V, 80 V, 160 V. The rated voltages of high voltage modules are 250 V and 800 V.https://www.gwinstek.com/en-global/products/detail/PSW-Multi



Versatile applications:
- Reliability testing of solar panelshttps://www.gwinstek.com/upload/media/service/Applications_eu/21_Reliability_testing_of_solar_panels_20190718.pdf
- Adjustable slew rate of either rising and falling time of output voltage for LED testinghttps://www.gwinstek.com/upload/media/service/Applications_eu/27_LED_assy_PSW20190718.pdf
- Durability test of Windshield wiper motors for automobiles https://www.gwinstek.com/upload/media/service/Applications_eu/Windshield_wiper_motors_for_automobile_20190718..pdf
GW Instek PSW Series and PSW-Multi Series provide exceptional value and performance for a wide array of power supply applications. The PSW Series delivers precise, stable power with a compact, user-friendly design, making it the ideal choice for single-channel, high-accuracy testing. Meanwhile, the PSW-Multi Series takes versatility to the next level, offering multiple independent or synchronized outputs to meet the needs of more complex, multi-channel testing environments. Together, these two series provide a comprehensive range of solutions, ensuring that engineers and technicians have the right power supply for every project, whether for simple or advanced applications. With their reliability, advanced features, and ease of use, the PSW Series and PSW-Multi Series are the ultimate tools for achieving precision and efficiency in power testing.

Overseas Sales Department
Good Will Instrument Co., Ltd
No. 7-1, Jhongsing Road, Tucheng Dist.,
New Taipei City 23678, Taiwan R.O.C.
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