A 12V 40A open-frame transformer is a reliable, bare-board power supply that converts standard AC mains voltage into a steady 12-volt DC output at up to 40 amps. It features an exposed, ventilated metal frame for efficient heat cooling, making it ideal for custom electronics, industrial automation, and LED lighting projects.

Input voltage - 220VAC

Output voltage - 12VDC (Adjustable 11v - 13v) 

Current rating - 40A  (Continuous 32A Max)