Features: Voltage range: Output voltage: DC 12V 20A. The maximum power is 240 W. High-quality material: the shell of the switching power supply 12 V 20 A power supply adapter transformer is made of durable aluminium. The internal coil of power supply 12 V transformer consists of a pure copper coil, and the service life is more than twice as high as that of aluminium wire. LED transformer 12 V power supply has good conductivity, high efficiency and no noise. Quad protection: 12 V 20 A power supply adapter transformer provides overload protection, surge protection, overcurrent protection and short circuit protection. Excellent drive with built-in safety guard to ensure safety and stability. .