PCBA, Open Frame Switching Power Supply, SMPS manufacturer / supplier in China, offering Power Supply Board 480W 500W 12V 24V PWM /DC 0-5V Negative Dimming (adjustable) PCBA, OEM ODM Industrial PCBA Power Control Motherboard Switching Power Supply, Factory OEM/ODM Customized 35W 12V 24V 2.5A DC AC Power Supply Board and so on.