以下是一份關于S-300-12V開關電源的產(chǎn)品中英文介紹：

S-300-12V開關電源是一款性能卓越的電源設備，廣泛應用于多種領域。其輸入電壓范圍為170-264V，能夠適應不同地區(qū)的電壓波動。該電源的輸出功率為300W，輸出電壓穩(wěn)定在12V，輸出電流可達25A，可為各種設備提供穩(wěn)定的電力支持，如LED燈帶、監(jiān)控設備等。

在性能方面，S-300-12V開關電源采用脈沖寬度調(diào)制（PWM）式調(diào)制方式，工作效率高達90%，輸出紋波噪音低至50mV，確保設備運行的穩(wěn)定性和可靠性。其工作溫度范圍為45-70℃，能夠在較為惡劣的環(huán)境下正常工作。

從外觀來看，該電源的外形尺寸為長198mm×寬109mm×厚50mm，設計緊湊，便于安裝和使用。此外，部分廠家還提供定制服務，包括外包裝、圖案和LOGO的定制，滿足不同客戶的需求。

在價格方面，S-300-12V開關電源的價格因廠家和購買數(shù)量的不同而有所差異。一般來說，單個價格在100元左右，而批量采購時價格會相對較低。

The S-300-12V switching power supply is a high-performance power device with a wide range of applications. It features an input voltage range of 170-264V, which can accommodate voltage fluctuations in different regions. With an output power of 300W, a stable output voltage of 12V, and an output current of up to 25A, this power supply can provide reliable power support for various devices, such as LED light strips and surveillance equipment.

In terms of performance, the S-300-12V switching power supply employs pulse width modulation (PWM) and boasts an efficiency of up to 90% and an output ripple noise as low as 50mV, ensuring stable and reliable operation of the devices. It can operate within a temperature range of 45-70℃, making it suitable for harsh environments.

The power supply has a compact design with dimensions of 198mm in length, 109mm in width, and 50mm in thickness, which facilitates easy installation and use. Additionally, some manufacturers offer customization services, including packaging, pattern, and logo customization, to meet the diverse needs of customers.

Regarding price, the cost of the S-300-12V switching power supply varies depending on the manufacturer and the quantity purchased. Generally, the price for a single unit is around 100 yuan, while bulk purchases can lead to lower prices.